How does water temperature affect your RODI unit? | BRStv Investigates
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- čas přidán 12. 09. 2024
- What does heating my water do to my BRS RODI unit performance? Do I get better filtration, TDS rejection, and RO Membrane filter life from heating or cooling my water before I filter it? It's these types of questions that drive today's BRStv Investigates episode!
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Today on BRStv, we have a brand new episode of our series, BRStv Investigates. In this series, we explore popular reefing theories, products, methods, and what the manuals are missing, with a focus on putting them to the test!
In this video, Ryan tests various temperatures and how they effect performance of your RODI unit. The results are fairly surprising, but after Ryan breaks down why we see these results, the endpoint becomes much clearer!
So follow along and see if today's test has you thinking of ways to heat your water before filtering, or if it is worth the effort at all! Also, be sure to keep an eye out for future episodes as we investigate everything from ceramic media effectiveness to how long your T5 bulbs actually last; all in our continuing effort to help make reefing a bit more fun and easy for you and your tank!
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Great video as always, very informative. As for us here in South Florida, the normal winter tap water temp is probably at the 75 mark and the summer is well much higher. I never thought to test it and check performance. I will now. Thanks, keep up the great work.
Hi Ryan, please always use the metric system as well. You have plenty of fans outside USA as well. Greetings from Brazil!
By the way, you also have fans from Africa (Senegal) who also enjoy the metric system! Great video as always!
Ps: If some of you from the Brs team ever want to come visit Senegal, I could show you around!
This was an awesome one.. I've always wondered how you could possibly warm up the water to precisely get to that temperature.. Cool, cool..
Good to know, moving from NJ to NC, there's no copper or metal pipes in these houses, just plastic or pex pipe for water lines, and probably in the summer my cold water is close to the 77• because the pipes are only 18" below the surface, got to luv it!
Just as a random point of fact. I use a thermostatic mixer to supply water to my RO/DI unit. Lest me set a temperature and always keeps it there or lower. This is what they use in some public bathrooms and day cares etc to keep the water from getting too hot. You can pick them up on amazon for about $25. I also use an inline thermometer since the temp on the mixer dial rarely reflect reality, might on a more expensive one. I originally picked this up for water changes on my freshwater tanks straight from the tap so I could match the tank temperature. Has worked well for a while now. I generally keep my inline water to about 80-85 so that by the time it hits the RO it's around 78-80. For safety reason I don't try to get too near the membrane limits. Water heater fairly new, so no real sedimente in system yet either.
I'm in Phoenix,our tap water is downright hot in the summertime! no such thing as cold tapwater here in summer time! lol
Just thought i'd share ... it's kind of funny watching your videos (and the community at large) talk about heating your water and such before adding it to your tanks. In arizona, we have the exact opposite problem. My ground water is right around 80 degrees in the summer (it's already over 100 degrees outside), and my house water pressure is about 110 PSI (not sure why it is so high). Either way, my RODI works great :) My wife and I actually make ice cubes out of RODI water to add to our tanks/new water to cool the temp down a bit.
Hey, are you sure your TDS (conductivity) meter is temperature compensated? 77deg F / 25 degC normalisation of conductivity readings are essential for comparison since conductivity of liquids unlike metals increases with temperature.
great series by the way keep up the good work!
Did you ever do the video on waste water ratio effects on TDS you described at 10:05 ?
great video with well water here and cold temps in winter I wondered how much decrease I was receiving.
Damn, I did not realise you were in Minnesota. I was just in a hotel in New Brighton for a week. Would have loved to have popped in to say hello and picked up a couple of things. Back in the UK now though. Perhaps next time! Great videos as always guys.
25°C is standard ambient temp for all of chemistry. Since the tap water comes out at different temperatures for all of us it doesn't make any sense for DOW, a chemical company, to depart from the international standard set by IUPAC in order to chase something that is highly variable anyways.
When I lived in Alaska my faucet gave me 38°f water sometimes. I'm in Georgia now, and my faucet is giving me 72°f water. Better to stick with the international standard than to invent a new one.
To add on to this, all lab equipment, pipetters, volumetric glassware, etc, is calibrated at what is called "STP", standard temperature and pressure, 25C and 1atm. Things can be recalibrated for other temps and pressures, but no one does that, and unless you're making temperature or pressure measurements, its really not necessary. It's nice when you can assume 25C and 1atm, so that your more complex measurements can then be simpler, and comparable to others in the field, i.e. all of measurement science.
summertime..warmer water = alot of flooded 5 gallon buckets hahahaha... better update my times to check them faster. I get 80 PSI straight from the tap btw! thanks for the video!
Knowing the outcome of your testing, how does a BRS RODI water system market itself? Based on Dow filter numbers or the more realistic tested tap water pressure and temperature?
Great video! Keep them coming!
Wow, I'm going to stop making water in the mornings when it's cooler. Thanks a bunch!
Lol, I know! And I bet it really makes a difference out here in LA, where it can be 40 degrees at night and over 80 degrees the next day 😁.
But less TDS when it’s cooler
Isnt the goal to remove tds? seems to me colder is better, if you want more flow, spend the money on a higher gpd unit.
How much of a effect does tempature swings have on the rodi unit?
I have my rodi Y'd off the washing machine valves with garden hose splitters so hot & cold feed into a single hose. I always notice that if I turn the hot water on, the tds jumps dramatically from sediment coming from the source water. So I just usually run the cold, with 30 tds from the source, at 80 psi without a booster pump. This is for a 150gpd membrane and I usually get more than 150 even though it's cold. But even so, I wouldn't want to burn through my blocks because of much higher incoming tds with warmer water.
When you do an investigation on the waste water ratio, will you also investigate if the temp of the supply water has an affect on the waster water ratio ? Seems like a logical thing to do since supply water temp affects the amount of gph produced.
77degrees is standard room temp for international science
Awesome video guys! In your opinion, what is the ideal PSI for an Ro unit? I recently added a booster pump and went from 35 to 75.. is that too much? Thanks!
Awesome! I'll check it out. Thanks!
Can you do a followup on this. Besides temp, how much does pre-treating water before it actually enters the RO system help. Normally there is a CB and a TDS filter before the Membrane. How much better does it get if I add an additional CB and maybe a chloramine removing carbon block before the system? The point being making the water as pure as possible before it hits the system. Would this make the membrane last two or three times as long? How much does this help and what is the point of diminishing returns. Thx guys.
How does water temperature affect DI resin?
If you pass 1000 gal of 100tds water through at 50f vs 120f does the resulting tds change and is the life of the Resin affected?
Good stuff guys, thanks!
Has anyone implemented low power inline water heaters? just googling around it looks like small point of use unit could get you to 77F pretty easily anywhere in NA. 30 AMP circuit though :(
You forgot to rate this either "Reef Certainty" or "Reef Fantasy". I guess since the question was "does it increase performance" the rating would be "Reef Certainty".
Does the water inside the bucket become source water or does it just heat the source water that's separate in the coils?
Mitch Powers Reef just heats it
very informative excellent
Something I’ve always wondered about rodi units... can you use the waste water for freshwater tanks? I know you can use any water technically but would it make sense? I have mostly freshwater tanks so if I could reuse the waste water it would be a very cost effective system all around.l
My cold water tap comes out at 76* lol.. almost perfect for enticing breeding in my freshwater tanks that I keep at 80*. I can do water changes with straight cold water and entice breeding in all my freshwater tanks... it’s perfectly simply..
80 degrees water coming from the city here in Texas
Yep. RO water is both good and bad here in TX.
The water is so darn hard. My tap water where I live measures no less than 350 TDS.
But the water is pretty close to 77F, water pressure is great where I live, and the waste water from RO units is a great way to be able to water lawns when we get serious water restrictions
hi is it good to drink water from Rodi unit ? or drink water before the last 2 stages of D.I ?
i bought the 6 stage 3 months ago and was curious because i would like to do both reef and home use. Thank you ill put in a bypass in between to get it before it hits the di stage.
reef certainty or not? It is fyi, just in case you get confused bc it's not mentioned like normal in the video. :)
I got you BRS, like you got me ;)
I had to get a booster pump for my system because I was getting between 35 and 40 PSI. But now the lowest setting on the booster pump gives me 75-80 PSI. Is this going to wreck the membrane long term or will it be OK? The manual says not to exceed 95 PSI, but I don't hear of too many people running with pressure as high as me.
hi,brs.
I have a one problem with my Ro system.
I newly install 100 gpd filmtec membrane and my tap water tds is 273 ppm but my ro is 28 ppm and don't come below 10 , also my flow restrictor is 300.
What's your idea?? pls help.
thank for your response.
BulkReefSupplyCom Thanks for your good response.
can I install two flow restrictor on my Ro system? for example: one 300 ml and other 400 ml ,it's work or should just go with one 600 ml flow restrictor.
Maybe a different idea would be to enclose the RO unit in a bucket, and submerge to whole unit.
The issue with up ratings membranes all boils down to greed. It makes each individual company's products sound more effective than it would ever be in practical use, likely to make people buy more of their products
I think I'm finally getting some diatoms day#8 is this common so early?!?!
Some people say not to run light's during cycling I haven't my tank is in my walk in closet some sunlight reaches it but its not much at all I'd say a hour a day it's getting direct sunlight
In my case someone turned on the hot water, so did it destroy the ro/di unit or just the membranes???
So in my case, just replaced the filters??
Thank for the info
Should be affect instead of effect. For example: "the effects of smoking affect the lungs."
Can mandarine dragonet eat zooplankton???? Pls answer!!!
I need serious help my Rodi unit keeps letting chlorine through started doing this about a month ago every place the carbon blocks replace the sediment filter replaced everything in there but it still lets chlorine through don't know how to fix it?
BulkReefSupplyCom I don't know what Big Al's Aquarium Services tests their water with I took a sample of water out of my brute trash can nothing else is getting through it's just a room The Brute trash can smells like a swimming pool it is completely strange I've been bringing the samples to my local fish supplier for testing Big Al's Aquarium services I live in Hamilton Ontario and my city uses Corinne like crazy to clean our water but I don't understand how it keeps getting through they have an increased chlorine in our water so it shouldn't be any problem with the brand and type of carbon blocks on buying because they're the same type that I've been buying for years my pet store can't figure it out I'm moving to a new location that doesn't even use chlorine for cleaning water which would be good and I'm really stressed about bringing my fish to the new locations this is 3 hours away I'm playing to move them in the summer when Canada is somewhat warm the new place also has a fish pond outside which would be fun also bought a 65 gallon reef ready tank I'm going to be find some Reef Saver live rock very soon for it also making a new lid for the stand to make it look more Gothic like the other bits of interior in my room but do not know if insulation foam would be good around Salt Water even though it won't be touching it directly if it splashes on it I do not know but still my problem is not been solved and I'm almost ready to buy a brand new Rodi unit I'm getting really sick of buying top off water from my pet store I only have a 29 gallon BioCube which the Bulk Reef Supply Channel really help me get started in the hobby it was a nightmare moving from a salt water to a freshwater since I'm not used to having filters on the back of my aquarium I've also had two red-eared sliders for years and I have a canister filter That's rated to filter 300 gallons more than the tank there in and still it's having a hard time Reagan sliders are messy little buggers and I can't even put fish in the tank otherwise my turtles eat them it is not one of your Rodi units thought you saw on the website but I did buy it from Big Al's Aquarium services and it's been working for years do the units themselves have a life expectancy?
CreepyMonkey HeadGame
Are you sure it's just chlorine and not chloramine?
You're going to need a new membrane. You do have to replace the membrane every year or two. But chlorine destroys the membrane if it gets past the carbon block. So if you have chlorine passing through the membrane, it has to be replaced anyway.
BRS sells chlorine testing strips and they're very cheap. You just dip it in the water and read the color against the bottle.
Are you using the 1micron carbon block? If you're using the 5micron block only, I'd switch to 1micron, or have 2 carbon blocks, using 5micron before a 1micron.
Forsaken 77 but that is just the thing I replace the carbon block sediment filter the membrane I got to see my daughter I'm having my local fish store test it I buy all my stuff from them because they know exactly what's in the water and Stoney Creek and it's been working since I got it up until a few months ago I can't I have replaced the sediment filter the carbon blocks even the memory and the DI resin I tried everything but still chlorine is getting through I have no idea what to do at this point other than by a whole new RODI unit
CreepyMonkey HeadGame
Just to get the stupid questions out of the way, but are you sure your water flow is going from the sediment to carbon to membrane to DI? Like you didn't accidentally bypass the carbon when disconnecting it?
I'm just trying to think of any possible reason this could happen. If you have a spare canister, try to replace that one.
You're gonna have to test for chlorine right off the carbon block because once it gets in the membrane, you'll always have a chlorine reading. So setup your sediment and carbon and disconnect the line going to the membrane and stick it in a bucket and test if there's chlorine. If there's not, then it's chlorine leaching out of the membrane that was contaminated and it'll have to be replaced again. You're gonna have to check each filter down the line to see where it's coming from.
Neat!
Our Water temperature of summer time cold water tap is 97 degrees.
Reef Dad I don’t know the exact temp mine was at but during the summer it was very very warm also. It was due to the water lines running under a large asphalt parking area. Cold water at first but quickly warmed after few seconds.
Huh, so if you think the other way around, cool the water to get better rejection.
@3:34 Anyone else notice Ryan says 69 degrees not 68. Just saying. 😇
25C is a chemistry standard so all maths and equations are based off of that temp. so they are just trying to keep all the legit sciences in line