D. Roseum
www.roseummaple.com
~100 taps on 3/16 custom temp controlled vacuum; shurflo vacuum #2; custom nat gas evap with auto-drawoff and tank level gas shut-off controller; homemade RO #1; homemade RO #2; SL SS filter press
2021: 27.1 gallons
2022: 35 gallons
Restrict output so that permeate and concentrate lines flow the same.
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Smoky Lake Corsair 2X6, UFA, Steam hood 20'X32' sugar house,~350 taps on Guzzler Vacuum.
I need help with my home made reverse osmosis, the port on the lower left of the first housing does not push water to the top of the second housing, nor does the left port on the second housing push water to the top of the third housing. Whether the needle valve is open or close the dial on the pressure gauge does not change. The motor is a residential grade reverse osmosis booster pump 200-300 gpd.IMG_0097.jpgIMG_0098.jpgfullsizeoutput_12d.jpg
Your lower ports in the membranes are reversed. Center is water the one in the right is concentrate.
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Luck dog,
There is a 2mm Allen screw in your pump head. You can turn it in to increase the pressure.
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Thank you, my other question then if it's reversed is, on my third housing the left port is 1/4" tubing where all other tubing is 3/8's. Does this make a difference or should all tubing be 3/8's?
Plumb the three center water ports in 3/8. Plumb the first two concentrate ports in 3/8 and terminate it to 1/4” with a needle valve.
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I just checked the schematic of the RB20 on the RO bucket site and the concentrate line is on the left of the third housing with the needle valve, so I'm unsure how mine is reversed.