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View Full Version : Which output is which and how much back pressure?



82cabby
01-31-2016, 04:37 PM
Sorry for the rookie questions, but I really appreciate the help.
So I fired up the homebuilt RO today and flushed it with bottled water from the grocery store. It seems like it moved a lot of water through the system and no matter how I adjusted the pump and the back pressure the system peaked at about 52 psi.

So, first question: I have a needle valve on the concentrate output line. Is that the right location and how much back pressure should I have there?

Second question: I think I have the concentrate and permeate outputs right on my membrane housings, but I want to be sure (can't have it plumbed up backwards, that wouldn't work!). So does this look right:

http://img.photobucket.com/albums/v282/dkutina/outputs_zpsq5kfgjul.jpg (http://smg.photobucket.com/user/dkutina/media/outputs_zpsq5kfgjul.jpg.html)

Thanks for all the help gang!