Really nice video. Simple and to the point, even mentioning how the seal is made as well as what to do if the stem leaks. I am a plumber and appreciate people who spread the knowledge.
helpful video. One suggestion I learned from a plumber. Leave it always ON, plug into a smart plug (available almost anywhere for under $15), and control it with your phone instead. You can use your phone to program it to turn on/off whenever you want, from anywhere. Way easier than using the 1970's dial.
thanks boss for this video I'd been looking at others on here with their systems and non of them said anything about letting the system run 24 / 7 as my wife and I are retired we are home most of the time so that is how we will use it. and as we are also adding reclaiming system to take our bath as well as sinks water to flush our toilet these 2 systems should safe us water and money. Thanx again.
That was the best DIY video I have ever seen...thank you. I will put that pump in myself, wish me luck. I will follow along with your video as I go. Thanks again
Yes, the thermostat valves can go anywhere, and several, not a problem. The Laing makes a unique pump and a timer is a good feature as is an aquastat. The timer can be just one of those plug into the wall for a lamp sort of thing or built on the pump. One issue with multiple floors is air in the line. Purging out all air is needed.
My husband and I just installed this exact product today and I hopeful but skeptical. We completed the install in about an hour (we were being goofy or it would have been faster). I thought it was going to take an hour or more for the system to kick in and start working but we had hot water to the bathroom sink right away. We used to never get hot water to the sinks in the bathrooms, it took too long to wait for it to heat up and the showers took 5+ minutes to get tepid hot water in the winter but it was heating up in 30 seconds. So far I love this and wish we had known about it for the last 12 years that we have lived in this house. I'll update my post if anything changes but so far I love it and it doesn't hum any more than a refrigerator, something I can certainly live with! Looking forward to hot showers and lower water bills!
Thanks for the report, and you must have followed directions, yes circulation pumps work. Some piping is more complex and the house lay out is problematic, but your must be a simple layout. Enjoy and save both water and energy.
Greg Chick We followed your video tutorial instead of the directions in the box since the product was the same thing you installed in the video! Your video saved us a ton of money paying someone else for installation! Thanks!
Hard to believe I'm the first commenter...I'm new to all this re-cir pump stuff but after buying and refurb/remodeling my mobile home and final resting place I decided to try this system for my kitchen sink...which is way on the other end of my place. So I found one of these units on Ebay and installed it. For me the install was a piece of cake, but I'm very mechanically inclined. I only needed one medium crescent wrench... Done! Beware...the two main fittings in and out of the pump use a "ONE" way valve. Once installed I had questions so I contacted the tech service hot line provided with the literature. I was amazed at how quite this unit is...as the tech guy said... these pumps are quiet and some are very quiet. My other concern was that the motor/cartridge housing get fairly hot. The Tech guy confirmed that yes it does...when the pump is operating. After 24hrs this has been confirmed. OKAY...now here's the rub. Instant "HOT" water? Not gonna happen. Hot water within a minute is acceptable. Now for the rub...The way this works is that it keeps the hot water circulating thru your water system...hot side to cold side constantly, or should I say warm side when not in use. The pump thermo sensor controls this. BUT...on the flip side...if you want "COLD" water it take as much or more time for that to happen...hence the rub or trade off. So for me...instead of waiting "Literally" 2 minutes for warm to hot water...I get "warm" water pretty much at the hit, and the hot within a minute...which is much better than my original system. So... okay...it does a pretty good job. Now the final test will just be time & reliability. I did a LOT of research and shopping around...and some of these pumps are ridiculously expensive! This original post was from an Eastman Nevercold 70601 under sink unit video. I do a lot of business with Amazon and the Eastman water heater top mount unit on Amazon is under $300 bucks. But essentially the same unit under sink mount is over $500 bucks! I don't get that. If anything it should be the same or less and they would sell a ton of these under sink units. They are really easy to install. So there's my take...worth a couple hundred bucks...and I'm reasonably satisfied...and that's no easy task.
Yes I get a lot of e-mail and comment's thanking me it's really up lifting and make it all worth wild very humbling. And at the same time I'm just like every one ells. I find a lot of great videos on here that help me. Like work on cars, electrical, Learning computer software program how to. It's endless. Any way you have a great day.
This just seems like a beautiful way of allowing Legionnaires, the correct way to keep your hot water permanently hot is to have a piped return in the system, this mean there's a hot flow and return, doing as they say, Its used mainly in larger buildings such as hospital, but more and more in larger houses. BUT your best installing it when the first fix is being done due to the degree off pipework that's needed.
This was a clear and informative video. Thank you. Had 2 plumbers cemo out and try to get to buy a thankless water heater. My water heater works and gets hot water everywhere. However hot water to the kitchen and guest bathroom sink takes forever. Neither one mention this option. Smh. $300 for this pump or $4000-$6000 new water heater.
There are different hot water piping layouts, all layouts do not use same circulation pump system. Pumps can go at the wtr. htr. or at the far fixture, as well different timers and controls are used to make work best or even at all. This is not a simple solution. As well, you guessed it, a tankless is not the answer, they do NOT get water to far end faster. Fasterhotwater.com. is best source for a system. The video you watched is an older video look at my newer video on circulation...
Yes I got a newer model and installed it in my kitchen after watching your video. It was pretty straight forward thank to you. I'm happy and it saved me thousands as a plumber was trying to convince me I needed a new tankless water heater. Lol
I intend to to be clear as well as for others to succeed in deciding if they want to DIY or not. All pumps (circulators), are not the same, even more so , all controls are not the same. Then all homes are not piped same, correct appliction of products matter. Circulating hot water is a very complex task.
Thank you for this video! Your instructions are very clear! Would you consider posting a video showing how to install the pump under a kitchen sink that has a garbage disposal? Also, would you explain further WHY the pump works? Thanks again!
Possibly an on demand pump set at desired pressure activated by flow switch. The Flo Tech company makes them. Just put it on the way to faucet below the sink. They are the size of a liter bottle.
It depends on how the piping is layed out. The full length is circulated, but branches are not. there are pumping systems that do that, but more is needed to be known
Interesting...I found a similar hot water recirculation valve that is much esier to install. Thermal convection circulates the water-so no pump is required. I installed it several months ago in less than 15-miutes and it has been working great! If you are interested it is called the "Hot Water Lobster". Billy-D
Thanks for getting back to me. The system in the video, is there any way to not have warm water coming out of the cold side of the faucet when the cold water valve is activated for cold water only? It seams that running hot water back through the cold water pipe will give you warm water if the cold water is used.
All I can say is I'm extremely happy with my Hot Water Lobster. I had a pump system in my last house. The pump system filled the entire cold water pipes with boiling hot water for the entire time the pump was running...it was impossible to get water cool enough to shower in...and the pump only lasted 2-years before failing. Oh well, to each his own.
Thanks for reply, The pressure of the water comes out of the wall under the sink (warm&cold) is too low (approximately 1 bar). I want to increase/boost it to 3 bar. It has to start when i open the faucet and stop when close the faucet. The price musn't exceed $130,- And must be small as possible. I haven't more place than what you have in the video and live in Turkey. So the wall outlet is 220 V AC. Thank you for your help.
Continued, Some have floating impellers and no seal on motor shaft while others have a cartridge for a motor and the pump is separate. Laing is a fine local to san Diego pump. Grundfos is a world wide pump having far more options. The De-mand Metlund unit has it all, get one. Or tell me your application and details and I can help you decide... like I said, Metlund.
Thanks, I always wanted to install this but thought it had to be done at the water heater. I do waste 1 minute of water waiting for the hot to come out.
I recommend ACT Demand circa. pump in general. If you want a circa. pump on a tankless water heater, the Mfgr. recommendation takes priority over my recommendations for warranty reasons, if they specify. The layout of piping might require a high head pump, or the pipe size might require a pump designed to move volume, not pressure..... Plumbing design is different than opinions, it needs to be based on protocol set by physics.
Very good instruction. Can you install two recirculating pumps? I've already got one installed on the water heater. I would like to know if I can install an additional one like the way you did below the sink.
A lot of this working efficiently for comfort surely depends on the differential in temperature between on/off on the pump thermo stat. If it's only a matter of 1-2 degrees the pump will be constantly pulsing the cold line with warm-hot water during the time frame the pump is set to run, which causes an issue if you have the cold open too. I guess you could hope to rely on the cold neutralizing the entirety of hot pulses. I'd be interested to know how well it works in actual application?
I herd you say that we could install the pump at the hot water tank of just put cross overs under the sinks do you have a video of that insulation. thanks.
Your question is too open, in what application and from what pressure to what pressure and with or with out an electrical outlet in and how much space available and what price range?
We have a very simple idea that recirculates the hot water back into the hot water tank using a bronze bearing pump which you can add a timer to,Then that covers ever faucet in the property ,not just the sink
Dear Greg, I just watched your video and found it interesting--thanks! This same unit is installed on our water heater and has been for 5 years... But I think the water heater is going out and will only heat to hot if all the way on "very hot". Unlike it was so very hot even on vacation mode when new! So, I really need to have that looked into. I am by no means savvy in these kinds of thing by far. However, since this pump is installed shouldn't it somehow heat the water even if the actual water heater is going? Or does it just hold it and or recirculated it. Or, am I missing how this device works all together. Only when water is very hot from heater it still comes out hot within 2 seconds and once again probably the water heater and can't circulate what is not there. I may have answered my own question, but thought I would ask the expert. Many thanks....
Yea, if I had endless time and resources our site could double or more the content and then viewers then we could sell this valuable service to the public for a win win trade. Till then we dream of going viral... Do you get e mails thanking you ?
Nice video! With this setup do you get much hot water when you turn on the cold water faucet? Do these units have a thermostat or just a timer. Thanks!
Hi Greg. I installed the Liang pump upstairs under my sink. I run the pump before taking a shower to save water. Problem. The water seems to be lukewarm during the shower whether the pump is on or off. I assume it is cylcled off since above 100 degrees it shuts off anyway. The shower is after the sink and I assume the cold somehow is leaking into the line through the valve. As a test I shut off both hot and cold to the pump/sink isolating the pump. Water is very hot but now I'm wasting water. Any tips, differnt kind of valve?
What happens to the cold water that is sitting in the cold water line when water from the hot side comes and pushes the water? So where does the water that was sitting in the cold water line go? Does it go back in the city line? And does your meter go backwards by the amount of water that was initially in the cold water line?
Water Softener question. I have a tankless water heater and salt water softener. Do I need to make any changes to the lines for it? Also, Do you recomend an expansion tank?
Thermal expansion, yeah probably. A T & P valve should be in order near the top of the piping system in the "collector" and a needle valve up there to release trapped air and back venting draining.... Mr. Greg, what kind of timer can I use for the shorter 2 or 3 minute on/off intervals? Any suggestion of brand name for me to search? Need something that will last for more than just a few months...
Hi loved the video - I am not handy. I live in San Diego too. Are issue is we have a Tankless water heater on the opposite end of the house that always makes it cold during winter waiting for the warm up. Last year we had a slab leak and our pipes are in the attic. So the cold is even worse. Does this video work similar with a rinnei tankless? The odd part during the repipe our plummer brought it up but with our limited knowledge we did not want to spend more money. Is it something your plumbing company can do?
if you install this on the faucet farthest from the hot water tank, does it only bring instant hot water to that specific faucet or to every faucet in the house?
Do you have any suggestions for a recirculating pump and timer for a "solar" hot water heating system? I would like to recirculate water through a homemade solar collector, tied into my water heater, and back thru my water heater at about 10 intervals during the hottest part of day for 5 minutes each interval. I need a pump recommendation and a timer that can be set at shorter intervals. Under regular use, the water comes from the hw tank, not the collector outside. I'm in TX heat is free.
A switch is a great way to go. Yes, this is a package product from ACT Metlund circulator see my 2 videos and link to that product video from them. I think a switch method is best if you use a pump designed to work fast. Once again the Metlund. Greg
So if I understand how this works, you save water by not having to wait for the hot water to heat up. But aren't you losing water by waiting for the water to cool in the cold side? We also are heating up the cold side piping which is typically not insulated so energy will have to be made up by the hot water heater as it recirculates through it? Especially in the colder months of the year.
At 9:02 of the video, you mention that it will thermostatically run when it needs to keep the pipe warm, and turn off when it is warm enough. Is the user able to set that temperature? Are all these recirculating pumps thermostatically controlled? The Grundfos UP models have a thermostatic valve for under the sink, so will that pump then keep trying to run until the valve opens up again? Your video is helpful because I have wanted to install the pump under the sink, so thank you.
great video,I'm trying to save water bring that its become expensive to use.I have" no water tank so what type of pump would be best for this type of situation
If I understand the mechanics correctly, without a dedicated return line, when the water recirculates back through the cold line, we are then drinking water that has been run through the hot water tank? I have always understood that due the use of decaying aluminum anode rods, water from the hot water tank should not be used for drinking or cooking. Is this safe?
Thanks for you helpful videos! Will installing a recirculator pump quickly bring hot water to the other fixtures in the room, as well? Would you require an additional pump for other bathrooms in need? And... nice orange Vistalite! :)
Furthest is in bathroom, will this help when I turn on shower, if its connected under sink or should I cut a hole in wall to get to shower and fenagle it that way?? Am thinking, looks easy is a lot of moola and gas and hours of doing it..like so many of my 30 minute jobbers lasting hours or days...
Due to using the closed loop system within the hot/cold water plumbings, it is very important that the water heater is clean because you will be drinking from it. This hot water will be circulated within your potable water system as well. All the sediments, corrosion, calcium deposits, rotten egg smell (if any) will be part of your drinking water. I would flush the water heater at least twice a year and change the anode rod every year if you have a recirculating pump.
I would prefer to have a switch to control when the pump starts and stops. Is there one like that? Or just set to run continously and wire through a switch?
Is there a way to have a recirculation pump close to the source (tankless water heater) that is initiated manually (wireless remote), but at the fixture furthest from the source, an unpowered bypass valve? There are no recirculation loops in this house either. I have seen something on Amazon.com, for a bypass valve by Grundflous, but nothing else. We do not want the recirculation pump at the furthest fixture because it is a pedestal sink. Great video.
Thank you for very clear lecture and very good presentation the only question is suppose you have several faucets, bathroom, shower, kitchen sink..etc then I assume you have to install a pump at each point.
Ed, No, the pipe goes frpm water heater tp the distant faucet, along the way, it passes the ones between. The crossovers if used can go at the end of the longest run, and if a T shaped house has such a branch, a bridge crossover valve can go there to allow circulation in that "Wing" of the house. There are different home piping layouts, details matter, but to cut to the chase short answer, no, one pump.
So if I have one bathroom on a loop and the sink is before the shower, but obviously I want to install the bypass under the sink b/c it is accessible. The only negative is that there will be instant hot water at the sink (when the pump is on) and a couple second delay at the shower b/c it is a few feet down the line? Is this correct?
In the video you said that if you don’t have an outlet at the sink that you could install the pump at the water Heater. That won’t work as this pump is designed only for installation at the point farthest away from the water Heater This unit has a thermostat which needs to be at the farthest point away from the heater to work. This unit won’t work well unless you have shared water main. Some newer houses have each faucet a home run to a central distribution point. That type won’t work because only one faucet gets the benefit.
my heater doesnt heat the water when dishwasher starts. heating coil of my dishwasher doesnt work. ı would like to use hot water but burner doesnt start when dishwasher operates. But for sink hand washing burner of the heater works. what can ıdo ? how can dishwasher can heat the water from the connection of hot water ?
Currently I have a basic duplex outlet installed under my kitchen sink but both outlets are occupied by the plugs for the dishwasher & disposal. Is it okay to install another duplex piggybacked off of the existing one?
T&P valves are not for operation, that is like using air bags for brakes. A Thermal exp. tank is a good addition to any home where pressure at street is over 80 psi, or a check valve is used in the system.
We moved into this house (built in 2010) that has a tankless water heater. I looked under one of the bathrooms sinks and found this extra house that is connected (on the side) to the water hose going to each faucet and then the extra hoses join together in a small box in the center, under the faucet. Any idea what it could be and is it unique to tankless?
Installed a circulation pump at my house today because of this video. Ready for instant hot water this winter :) Thank you for the great video.
Really nice video. Simple and to the point, even mentioning how the seal is made as well as what to do if the stem leaks. I am a plumber and appreciate people who spread the knowledge.
helpful video. One suggestion I learned from a plumber. Leave it always ON, plug into a smart plug (available almost anywhere for under $15), and control it with your phone instead. You can use your phone to program it to turn on/off whenever you want, from anywhere. Way easier than using the 1970's dial.
Thank you Greg for the clear and concise explaination. I learned alot and feel confident in installing my Nevercold pump! Great work!
Seeing how the manufacturer has the 'ON-OFF' time set was the one thing I was not sure of. Thanks!
Very good, clear, easy to understand and easy follow instructions. Thanks !!
thanks boss for this video I'd been looking at others on here with their systems and non of them said anything about letting the system run 24 / 7 as my wife and I are retired we are home most of the time so that is how we will use it. and as we are also adding reclaiming system to take our bath as well as sinks water to flush our toilet these 2 systems should safe us water and money. Thanx again.
Thanks for this video. It answered a big question for me about the bracket. So simple though. I was afraid of breaking it!
That was the best DIY video I have ever seen...thank you. I will put that pump in myself, wish me luck. I will follow along with your video as I go. Thanks again
Yes, the thermostat valves can go anywhere, and several, not a problem. The Laing makes a unique pump and a timer is a good feature as is an aquastat. The timer can be just one of those plug into the wall for a lamp sort of thing or built on the pump. One issue with multiple floors is air in the line. Purging out all air is needed.
Gracious, thanks, for watching
Great video, extremely well presented. Thanks.
My husband and I just installed this exact product today and I hopeful but skeptical. We completed the install in about an hour (we were being goofy or it would have been faster). I thought it was going to take an hour or more for the system to kick in and start working but we had hot water to the bathroom sink right away. We used to never get hot water to the sinks in the bathrooms, it took too long to wait for it to heat up and the showers took 5+ minutes to get tepid hot water in the winter but it was heating up in 30 seconds. So far I love this and wish we had known about it for the last 12 years that we have lived in this house. I'll update my post if anything changes but so far I love it and it doesn't hum any more than a refrigerator, something I can certainly live with! Looking forward to hot showers and lower water bills!
Thanks for the report, and you must have followed directions, yes circulation pumps work. Some piping is more complex and the house lay out is problematic, but your must be a simple layout. Enjoy and save both water and energy.
Greg Chick
We followed your video tutorial instead of the directions in the box since the product was the same thing you installed in the video! Your video saved us a ton of money paying someone else for installation! Thanks!
I put one of these in my house 20 years ago and its still working fine.
are you serious? Has this idea been around for 20 years?
Awesome video presentation!! Thanks for sharing your knowledge.
Very good video easy to follow, thanks
Thanks Claude, I will take some time to view yours some day. I watch others and learn too. I wish I had time and resource to do more.
Great video. Awesome Teacher.
most everyone needs this. done correctly it saves water and power as well as time!..
Hard to believe I'm the first commenter...I'm new to all this re-cir pump stuff but after buying and refurb/remodeling my mobile home and final resting place I decided to try this system for my kitchen sink...which is way on the other end of my place. So I found one of these units on Ebay and installed it. For me the install was a piece of cake, but I'm very mechanically inclined. I only needed one medium crescent wrench... Done! Beware...the two main fittings in and out of the pump use a "ONE" way valve. Once installed I had questions so I contacted the tech service hot line provided with the literature. I was amazed at how quite this unit is...as the tech guy said... these pumps are quiet and some are very quiet. My other concern was that the motor/cartridge housing get fairly hot. The Tech guy confirmed that yes it does...when the pump is operating. After 24hrs this has been confirmed. OKAY...now here's the rub. Instant "HOT" water? Not gonna happen. Hot water within a minute is acceptable. Now for the rub...The way this works is that it keeps the hot water circulating thru your water system...hot side to cold side constantly, or should I say warm side when not in use. The pump thermo sensor controls this. BUT...on the flip side...if you want "COLD" water it take as much or more time for that to happen...hence the rub or trade off. So for me...instead of waiting "Literally" 2 minutes for warm to hot water...I get "warm" water pretty much at the hit, and the hot within a minute...which is much better than my original system. So... okay...it does a pretty good job. Now the final test will just be time & reliability. I did a LOT of research and shopping around...and some of these pumps are ridiculously expensive! This original post was from an Eastman Nevercold 70601 under sink unit video. I do a lot of business with Amazon and the Eastman water heater top mount unit on Amazon is under $300 bucks. But essentially the same unit under sink mount is over $500 bucks! I don't get that. If anything it should be the same or less and they would sell a ton of these under sink units. They are really easy to install. So there's my take...worth a couple hundred bucks...and I'm reasonably satisfied...and that's no easy task.
Yes I get a lot of e-mail and comment's thanking me it's really up lifting and make it all worth wild very humbling. And at the same time I'm just like every one ells. I find a lot of great videos on here that help me. Like work on cars, electrical, Learning computer software program how to. It's endless. Any way you have a great day.
This just seems like a beautiful way of allowing Legionnaires, the correct way to keep your hot water permanently hot is to have a piped return in the system, this mean there's a hot flow and return, doing as they say, Its used mainly in larger buildings such as hospital, but more and more in larger houses. BUT your best installing it when the first fix is being done due to the degree off pipework that's needed.
Very helpful and useful video
Great video, thanks!
This was a clear and informative video. Thank you. Had 2 plumbers cemo out and try to get to buy a thankless water heater. My water heater works and gets hot water everywhere. However hot water to the kitchen and guest bathroom sink takes forever. Neither one mention this option. Smh. $300 for this pump or $4000-$6000 new water heater.
There are different hot water piping layouts, all layouts do not use same circulation pump system. Pumps can go at the wtr. htr. or at the far fixture, as well different timers and controls are used to make work best or even at all. This is not a simple solution. As well, you guessed it, a tankless is not the answer, they do NOT get water to far end faster. Fasterhotwater.com. is best source for a system. The video you watched is an older video look at my newer video on circulation...
Yes I got a newer model and installed it in my kitchen after watching your video. It was pretty straight forward thank to you. I'm happy and it saved me thousands as a plumber was trying to convince me I needed a new tankless water heater. Lol
Great explanation
I intend to to be clear as well as for others to succeed in deciding if they want to DIY or not. All pumps (circulators), are not the same, even more so , all controls are not the same. Then all homes are not piped same, correct appliction of products matter. Circulating hot water is a very complex task.
Great video...
Thank you for this video! Your instructions are very clear! Would you consider posting a video showing how to install the pump under a kitchen sink that has a garbage disposal? Also, would you explain further WHY the pump works? Thanks again!
Call me, I will tell you directly, videos are a lot of work...760-788-2889, Greg
Possibly an on demand pump set at desired pressure activated by flow switch. The Flo Tech company makes them. Just put it on the way to faucet below the sink. They are the size of a liter bottle.
Claude, thanks!
Greg
Thanks a lot.
It depends on how the piping is layed out. The full length is circulated, but branches are not. there are pumping systems that do that, but more is needed to be known
Thanks!
Interesting...I found a similar hot water recirculation valve that is much esier to install. Thermal convection circulates the water-so no pump is required. I installed it several months ago in less than 15-miutes and it has been working great! If you are interested it is called the "Hot Water Lobster". Billy-D
Thanks for getting back to me. The system in the video, is there any way to not have warm water coming out of the cold side of the faucet when the cold water valve is activated for cold water only? It seams that running hot water back through the cold water pipe will give you warm water if the cold water is used.
All I can say is I'm extremely happy with my Hot Water Lobster. I had a pump system in my last house. The pump system filled the entire cold water pipes with boiling hot water for the entire time the pump was running...it was impossible to get water cool enough to shower in...and the pump only lasted 2-years before failing. Oh well, to each his own.
My left ear really enjoyed this video.
Nice 👍
Thanks for reply,
The pressure of the water comes out of the wall under the sink (warm&cold) is too low (approximately 1 bar). I want to increase/boost it to 3 bar.
It has to start when i open the faucet and stop when close the faucet. The price musn't exceed $130,- And must be small as possible.
I haven't more place than what you have in the video and live in Turkey. So the wall outlet is 220 V AC.
Thank you for your help.
Good pix.
Grundfos Pumps sells the valves at Ferguson supply houses, search comfort systems, they come with the pump.
Continued, Some have floating impellers and no seal on motor shaft while others have a cartridge for a motor and the pump is separate. Laing is a fine local to san Diego pump. Grundfos is a world wide pump having far more options. The De-mand Metlund unit has it all, get one. Or tell me your application and details and I can help you decide... like I said, Metlund.
Thanks, I always wanted to install this but thought it had to be done at the water heater. I do waste 1 minute of water waiting for the hot to come out.
I recommend ACT Demand circa. pump in general. If you want a circa. pump on a tankless water heater, the Mfgr. recommendation takes priority over my recommendations for warranty reasons, if they specify. The layout of piping might require a high head pump, or the pipe size might require a pump designed to move volume, not pressure..... Plumbing design is different than opinions, it needs to be based on protocol set by physics.
Yes.
Trust me I do understand. Same here.
Metlund Dmand pump system is totally equipped to do all of this correctly and to code.
Very good instruction. Can you install two recirculating pumps? I've already got one installed on the water heater. I would like to know if I can install an additional one like the way you did below the sink.
A lot of this working efficiently for comfort surely depends on the differential in temperature between on/off on the pump thermo stat. If it's only a matter of 1-2 degrees the pump will be constantly pulsing the cold line with warm-hot water during the time frame the pump is set to run, which causes an issue if you have the cold open too. I guess you could hope to rely on the cold neutralizing the entirety of hot pulses. I'd be interested to know how well it works in actual application?
I herd you say that we could install the pump at the hot water tank of just put cross overs under the sinks do you have a video of that insulation. thanks.
Your question is too open, in what application and from what pressure to what pressure and with or with out an electrical outlet in and how much space available and what price range?
We have a very simple idea that recirculates the hot water back into the hot water tank using a bronze bearing pump which you can add a timer to,Then that covers ever faucet in the property ,not just the sink
Dear Greg, I just watched your video and found it interesting--thanks! This same unit is installed on our water heater and has been for 5 years... But I think the water heater is going out and will only heat to hot if all the way on "very hot". Unlike it was so very hot even on vacation mode when new! So, I really need to have that looked into. I am by no means savvy in these kinds of thing by far. However, since this pump is installed shouldn't it somehow heat the water even if the actual water heater is going? Or does it just hold it and or recirculated it. Or, am I missing how this device works all together. Only when water is very hot from heater it still comes out hot within 2 seconds and once again probably the water heater and can't circulate what is not there. I may have answered my own question, but thought I would ask the expert. Many thanks....
Yea, if I had endless time and resources our site could double or more the content and then viewers then we could sell this valuable service to the public for a win win trade. Till then we dream of going viral...
Do you get e mails thanking you ?
Nice video! With this setup do you get much hot water when you turn on the cold water faucet? Do these units have a thermostat or just a timer. Thanks!
Hello,
Do you have such a thing for repressuring either the cold or the hot water comes out of the wall?
Thank you for your video.
I’ve heard different model can’t use if water heater has heat trap. Does this one work with heat trap in the water heater?
Cool ugh! actually Hot!
Hi Greg. I installed the Liang pump upstairs under my sink. I run the pump before taking a shower to save water. Problem. The water seems to be lukewarm during the shower whether the pump is on or off. I assume it is cylcled off since above 100 degrees it shuts off anyway. The shower is after the sink and I assume the cold somehow is leaking into the line through the valve. As a test I shut off both hot and cold to the pump/sink isolating the pump. Water is very hot but now I'm wasting water. Any tips, differnt kind of valve?
What happens to the cold water that is sitting in the cold water line when water from the hot side comes and pushes the water?
So where does the water that was sitting in the cold water line go? Does it go back in the city line?
And does your meter go backwards by the amount of water that was initially in the cold water line?
Water Softener question. I have a tankless water heater and salt water softener. Do I need to make any changes to the lines for it? Also, Do you recomend an expansion tank?
the pump has instructions that show the exact spot to set correct time.
Thermal expansion, yeah probably. A T & P valve should be in order near the top of the piping system in the "collector" and a needle valve up there to release trapped air and back venting draining.... Mr. Greg, what kind of timer can I use for the shorter 2 or 3 minute on/off intervals? Any suggestion of brand name for me to search? Need something that will last for more than just a few months...
Hi loved the video - I am not handy. I live in San Diego too. Are issue is we have a Tankless water heater on the opposite end of the house that always makes it cold during winter waiting for the warm up. Last year we had a slab leak and our pipes are in the attic. So the cold is even worse. Does this video work similar with a rinnei tankless? The odd part during the repipe our plummer brought it up but with our limited knowledge we did not want to spend more money. Is it something your plumbing company can do?
Thanks for the video A++++++
if you install this on the faucet farthest from the hot water tank, does it only bring instant hot water to that specific faucet or to every faucet in the house?
Do you have any suggestions for a recirculating pump and timer for a "solar" hot water heating system? I would like to recirculate water through a homemade solar collector, tied into my water heater, and back thru my water heater at about 10 intervals during the hottest part of day for 5 minutes each interval. I need a pump recommendation and a timer that can be set at shorter intervals. Under regular use, the water comes from the hw tank, not the collector outside. I'm in TX heat is free.
A switch is a great way to go. Yes, this is a package product from ACT Metlund circulator see my 2 videos and link to that product video from them. I think a switch method is best if you use a pump designed to work fast. Once again the Metlund.
Greg
So if I understand how this works, you save water by not having to wait for the hot water to heat up. But aren't you losing water by waiting for the water to cool in the cold side? We also are heating up the cold side piping which is typically not insulated so energy will have to be made up by the hot water heater as it recirculates through it? Especially in the colder months of the year.
At 9:02 of the video, you mention that it will thermostatically run when it needs to keep the pipe warm, and turn off when it is warm enough. Is the user able to set that temperature? Are all these recirculating pumps thermostatically controlled? The Grundfos UP models have a thermostatic valve for under the sink, so will that pump then keep trying to run until the valve opens up again? Your video is helpful because I have wanted to install the pump under the sink, so thank you.
great video,I'm trying to save water bring that its become expensive to use.I have" no water tank so what type of pump would be best for this type of situation
Hahahahah spaghetti 🍝 under the sink!! For some reason that sounds familiar.🤣😂🤣😂
If I understand the mechanics correctly, without a dedicated return line, when the water recirculates back through the cold line, we are then drinking water that has been run through the hot water tank? I have always understood that due the use of decaying aluminum anode rods, water from the hot water tank should not be used for drinking or cooking. Is this safe?
Can I use the pump system with a tankless gas water heater?
Thanks for you helpful videos! Will installing a recirculator pump quickly bring hot water to the other fixtures in the room, as well? Would you require an additional pump for other bathrooms in need?
And... nice orange Vistalite! :)
Furthest is in bathroom, will this help when I turn on shower, if its connected under sink or should I cut a hole in wall to get to shower and fenagle it that way?? Am thinking, looks easy is a lot of moola and gas and hours of doing it..like so many of my 30 minute jobbers lasting hours or days...
Instead of the goal to have immediate hot water.....can you rig the system to prevent water line freezing of the home's lines?
do you have a video of pump at the hot water heater ?
Due to using the closed loop system within the hot/cold water plumbings, it is very important that the water heater is clean because you will be drinking from it. This hot water will be circulated within your potable water system as well. All the sediments, corrosion, calcium deposits, rotten egg smell (if any) will be part of your drinking water. I would flush the water heater at least twice a year and change the anode rod every year if you have a recirculating pump.
I would prefer to have a switch to control when the pump starts and stops. Is there one like that? Or just set to run continously and wire through a switch?
I have this pump for a few years, but it stopped pumping water. Now I can troubleshoot it?
Yep. :-)
Is there a way to have a recirculation pump close to the source (tankless water heater) that is initiated manually (wireless remote), but at the fixture furthest from the source, an unpowered bypass valve? There are no recirculation loops in this house either. I have seen something on Amazon.com, for a bypass valve by Grundflous, but nothing else. We do not want the recirculation pump at the furthest fixture because it is a pedestal sink. Great video.
Thank you for very clear lecture and very good presentation the only question is suppose you have several faucets, bathroom, shower, kitchen sink..etc then I assume you have to install a pump at each point.
Ed,
No, the pipe goes frpm water heater tp the distant faucet, along the way, it passes the ones between. The crossovers if used can go at the end of the longest run, and if a T shaped house has such a branch, a bridge crossover valve can go there to allow circulation in that "Wing" of the house. There are different home piping layouts, details matter, but to cut to the chase short answer, no, one pump.
If i understand you i need to install pump in my hot water recirculation line? My goes into the bottom of tanks drain valve have a tee installed.
I am well aware of PTRV and well aware of what happens when they fail I am formally and field educated for decades.
Where I can get this pump with the bracket please! Thanks
So if I have one bathroom on a loop and the sink is before the shower, but obviously I want to install the bypass under the sink b/c it is accessible. The only negative is that there will be instant hot water at the sink (when the pump is on) and a couple second delay at the shower b/c it is a few feet down the line? Is this correct?
In the video you said that if you don’t have an outlet at the sink that you could install the pump at the water Heater. That won’t work as this pump is designed only for installation at the point farthest away from the water Heater This unit has a thermostat which needs to be at the farthest point away from the heater to work.
This unit won’t work well unless you have shared water main. Some newer houses have each faucet a home run to a central distribution point. That type won’t work because only one faucet gets the benefit.
does the pump have to be plugged into gfi outlet
This is one of many circ systems,please let us know if you have anything to ask or say about your needs, your layout or experiences.
my heater doesnt heat the water when dishwasher starts. heating coil of my dishwasher doesnt work. ı would like to use hot water but burner doesnt start when dishwasher operates. But for sink hand washing burner of the heater works. what can ıdo ? how can dishwasher can heat the water from the connection of hot water ?
does this system work with a tankless water heater?
Currently I have a basic duplex outlet installed under my kitchen sink but both outlets are occupied by the plugs for the dishwasher & disposal. Is it okay to install another duplex piggybacked off of the existing one?
Does your house have to be plumbed a certain way for this to work, or will it work in any house?
What am I missing or complicating? Unless you have additional return hose to main hot water system I dont understand how this would actually work.
T&P valves are not for operation, that is like using air bags for brakes. A Thermal exp. tank is a good addition to any home where pressure at street is over 80 psi, or a check valve is used in the system.
We moved into this house (built in 2010) that has a tankless water heater. I looked under one of the bathrooms sinks and found this extra house that is connected (on the side) to the water hose going to each faucet and then the extra hoses join together in a small box in the center, under the faucet. Any idea what it could be and is it unique to tankless?
Can you tell me what model of pump you used. It looks like what I have and I would like to replace it with the same unit. Thanks
Will installing one of the pumps help prevent frozen hot water pipes?