You can find high-quality membranes and housings from Membrane Solutions in their Amazon Store: www.amazon.com/stores/page/F52DD3B0-BCA3-4BE4-A8B2-02EFC4C75251?maas=maas_adg_F811B5F9D875168D72E748538864EC40_afap_abs&ref_=aa_maas&tag=maas
Thank you for the video! I used information from your website and video to design and build a system as well as a spreadsheet that can model the the operation of an RO with recirculation. For example, I will probably run 1.88X on pass one and recirculate 62.5% to get 70% water reduction and total 3.35X concentration. Tests have gone well so far. All there is now is to wait until I have enough cold sap to run and see what happens.
Very welcome. I currently do internal recirculation on a 5 x 400 gpd membrane setup and am very happy with the results. I also built a spreadsheet to model the expected input & outputs.
Dan, I built my first RO last season based directly off your 2019 video. My hobby budget only allows me so much $$, so I went with a less expensive pump that has to be monitored because it runs hot--I plan to upgrade in a season or two. I also used 2-75GPD membranes in series and found that at 95-100psi I was averaging about 0.75 g/hr concentrate, going from 2-3 brix to 4-5. For 4 years now I have used the turkey fryer method, consuming 4-5 LP tanks per season. Last year with the RO, I only used 3-1/2. With the discount code, I purchased the 2-pack 150GPD membranes and look forward to running again this season. This year I have welded two turkey fryers together in a frame in order to set a large chaffing pan across them. I am so excited to see how much faster my boil is with those adjustments. Thank you so much for putting this knowledge out there--it was hard to find good info about this process that didn't take an engineering background. Happy Sugaring!
Thank you for the kind feedback and I am so glad to hear these videos are helpful to the backyard sugar maker! Best wishes on the upcoming season and your new setup!
@@31946mar, I don't have an accurate method of instantly checking the sugar content, but by doing some maths, I reason that my permeate still holds 0.2-0.3%. Last year I ran a test batch of 15 gallons of permeate through a fresh set of 75gpm RO filters. I let it run through 2-clycles (1st run, the permeate went back in the barrel, the second into clean buckets). The concentrate capture was only about 4 ounces after both passes (about an hour running), which comes out to about 0.2%. For me, I figured that if I am going to chase less than a quarter percent sugar, than I am no longer doing this for fun.
Awesome video, and very recent, so very relevant. I tried to check out the 150 GPD membrane 2 pack as linked to Amazon; but I get a page not found. I'm definitely interested, if there is a possibility you might correct the link. Best regards from Montreal!
The recirculate doesnt make sense. Won’t it go the opposite way? Like won’t it come from pump output pre-treated, high pressure side and just inject it in to your concentrate stream?
A low pressure recirculation loop increases final concentration output while maintaining a lower recovery rate for each of the membranes. I have an additional video where I show the plumbing: czcams.com/video/JIbeiX3a16I/video.html You split the concentrate output after the needle valve (huge pressure drop occurs across the needle valve from the 110 psi operating pressure inside to atmospheric pressure) and feed a portion of it back to the pump inlet. Most common is a 50/50 split but you can insert other needle valves on the recirc line or the final concentrate out flow line to control how much gets recirculated vs sent out. The final concentration will assymptotically increase to a steady state after a short period of time, and can be raised or lowered by controlling the amount that gets recirculated. Sketch of plumbing: photos.app.goo.gl/mYUBpAca2C8sbM1a8 Sketch of increased concentration: photos.app.goo.gl/TaRKMtbhccTmAcov5
If I make a system with only one RO canister, how many times do I need to run the concentrate through the system to remove 50% water? Does a single pass remove this much water from the raw sap?
Yes it can, but it is running the membrane at a higher recovery rate which can lead to some fouling and reduced efficiency over a longer period of time. You can put a recirculation loop in to increase concentration without increasing recovery rate. That recirc loop would be taking sap after the needle valve and feeding it back into the intake low pressure side of the pump (along with fresh sap as well).
Hi going to set up a system like yours. 4 400 gpd membranes. My question is are you using the Aquatec 8800 series 8852 water pressure boost pump to feed the system. Just wondering if it has enough volume to keep the membranes flushed. what I’m reading is it’s only good for a 200 GPD system. Please help thanks
No. I am using the Coronwater TYP-8900K pump which has a much higher flowrate at 100psi than the aquatec 8852. Video of it is here: czcams.com/video/9_Eq_sq6Tp0/video.html
A GRL8-02 level sensor/controller was used for the auto start / shutoff. No special probes required. Standard 14-2 or 12-2 wire (or any solid copper wire) can be used for the probes. Just strip off the insulation at the tips. That level controller works on fluid resistance (when standard wire used as probes contact the fluid). The sensitivity of the controller can be adjusted.
10% Discounts on Membrane Solutions membranes until 12/31/2022: 400 GPD RO membrane with housing www.amazon.com/dp/B07BT6HZNH 10% off Code：ROSEUMRO102 150 GPD RO membrane，2 Pack www.amazon.com/dp/B07BPSFLNW 10% off Code：ROSEUMRO102 400 GPD RO membrane，1 Pack www.amazon.com/dp/B071SGLF18 10% off Code：ROSEUMRO10 Please like this comment if you buy one using these codes!
You can find high-quality membranes and housings from Membrane Solutions in their Amazon Store:
www.amazon.com/stores/page/F52DD3B0-BCA3-4BE4-A8B2-02EFC4C75251?maas=maas_adg_F811B5F9D875168D72E748538864EC40_afap_abs&ref_=aa_maas&tag=maas
Thank you for the video! I used information from your website and video to design and build a system as well as a spreadsheet that can model the the operation of an RO with recirculation. For example, I will probably run 1.88X on pass one and recirculate 62.5% to get 70% water reduction and total 3.35X concentration. Tests have gone well so far. All there is now is to wait until I have enough cold sap to run and see what happens.
Very welcome. I currently do internal recirculation on a 5 x 400 gpd membrane setup and am very happy with the results. I also built a spreadsheet to model the expected input & outputs.
Dan, I built my first RO last season based directly off your 2019 video. My hobby budget only allows me so much $$, so I went with a less expensive pump that has to be monitored because it runs hot--I plan to upgrade in a season or two. I also used 2-75GPD membranes in series and found that at 95-100psi I was averaging about 0.75 g/hr concentrate, going from 2-3 brix to 4-5. For 4 years now I have used the turkey fryer method, consuming 4-5 LP tanks per season. Last year with the RO, I only used 3-1/2. With the discount code, I purchased the 2-pack 150GPD membranes and look forward to running again this season. This year I have welded two turkey fryers together in a frame in order to set a large chaffing pan across them. I am so excited to see how much faster my boil is with those adjustments. Thank you so much for putting this knowledge out there--it was hard to find good info about this process that didn't take an engineering background. Happy Sugaring!
Thank you for the kind feedback and I am so glad to hear these videos are helpful to the backyard sugar maker! Best wishes on the upcoming season and your new setup!
What is your experience with sugar content of permeate? I got 0.3% on first test.
@@31946mar, I don't have an accurate method of instantly checking the sugar content, but by doing some maths, I reason that my permeate still holds 0.2-0.3%. Last year I ran a test batch of 15 gallons of permeate through a fresh set of 75gpm RO filters. I let it run through 2-clycles (1st run, the permeate went back in the barrel, the second into clean buckets). The concentrate capture was only about 4 ounces after both passes (about an hour running), which comes out to about 0.2%. For me, I figured that if I am going to chase less than a quarter percent sugar, than I am no longer doing this for fun.
Lots of great information!
Glad it is all helpful!
Awesome video, and very recent, so very relevant.
I tried to check out the 150 GPD membrane 2 pack as linked to Amazon; but I get a page not found.
I'm definitely interested, if there is a possibility you might correct the link.
Best regards from Montreal!
Thank you! I just tried all 3 links and confirmed they are active and going to appropriate locations on amazon. Please try again.
The recirculate doesnt make sense. Won’t it go the opposite way? Like won’t it come from pump output pre-treated, high pressure side and just inject it in to your concentrate stream?
A low pressure recirculation loop increases final concentration output while maintaining a lower recovery rate for each of the membranes. I have an additional video where I show the plumbing: czcams.com/video/JIbeiX3a16I/video.html
You split the concentrate output after the needle valve (huge pressure drop occurs across the needle valve from the 110 psi operating pressure inside to atmospheric pressure) and feed a portion of it back to the pump inlet. Most common is a 50/50 split but you can insert other needle valves on the recirc line or the final concentrate out flow line to control how much gets recirculated vs sent out.
The final concentration will assymptotically increase to a steady state after a short period of time, and can be raised or lowered by controlling the amount that gets recirculated.
Sketch of plumbing:
photos.app.goo.gl/mYUBpAca2C8sbM1a8
Sketch of increased concentration:
photos.app.goo.gl/TaRKMtbhccTmAcov5
If I make a system with only one RO canister, how many times do I need to run the concentrate through the system to remove 50% water? Does a single pass remove this much water from the raw sap?
Yes it can, but it is running the membrane at a higher recovery rate which can lead to some fouling and reduced efficiency over a longer period of time. You can put a recirculation loop in to increase concentration without increasing recovery rate. That recirc loop would be taking sap after the needle valve and feeding it back into the intake low pressure side of the pump (along with fresh sap as well).
Hi going to set up a system like yours. 4 400 gpd membranes. My question is are you using the Aquatec 8800 series 8852 water pressure boost pump to feed the system. Just wondering if it has enough volume to keep the membranes flushed. what I’m reading is it’s only good for a 200 GPD system. Please help thanks
No. I am using the Coronwater TYP-8900K pump which has a much higher flowrate at 100psi than the aquatec 8852. Video of it is here: czcams.com/video/9_Eq_sq6Tp0/video.html
@@RoseumMapleSyrup thank you so much. Keep up the great work!
Why probes did. You use for ou level control?
A GRL8-02 level sensor/controller was used for the auto start / shutoff. No special probes required. Standard 14-2 or 12-2 wire (or any solid copper wire) can be used for the probes. Just strip off the insulation at the tips. That level controller works on fluid resistance (when standard wire used as probes contact the fluid). The sensitivity of the controller can be adjusted.
10% Discounts on Membrane Solutions membranes until 12/31/2022:
400 GPD RO membrane with housing
www.amazon.com/dp/B07BT6HZNH
10% off Code：ROSEUMRO102
150 GPD RO membrane，2 Pack
www.amazon.com/dp/B07BPSFLNW
10% off Code：ROSEUMRO102
400 GPD RO membrane，1 Pack
www.amazon.com/dp/B071SGLF18
10% off Code：ROSEUMRO10
Please like this comment if you buy one using these codes!