This was my BIG build for the coming season.
I built a 2 membrane RO.
I used XLE-4040 membranes. The feed pump is a 1HP pump that I got off ebay. The high pressure pump is a Procon series 5 SS vane pump driven by a 1.5HP motor.
I am using a PID controller to monitor the sap temp and have a low pressure switch to shut it down when I run out of sap or the filter clogs. I have a high pressure switch to protect it if something goes wrong and the pressure goes high.

I made a wash tank out of half of a dairy sink. I put a 3000W heating element in it to warm up the water and it is controlled by a PID and temp probe.

I made a valve panel with 1/2" ss 3 way ball valves so that I can divert where the concentrate and permeate goes.
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