I decided to start a new thread because of how much has transpired since my Sta-Rite Pump went bad back in December. Without rehashing every detail, I just installed my third replacement production pump since December. Today I installed a Dayton pump and everything seems to be working OK except I have zero PSI on my pump gauge. It is producing 004 TDS and the production water is at about 1.75 gallons with reject at about 4 gallons. I do not know however at what pressure it is producing this though. I turned the regulator up until I saw the reject flow meter starting to bounce and could hear the pump starting to pulse the water through the membranes, then backed it off. I am assuming that the gauge is bad but not sure if anything else could be causing the zero reading. Also, if someone has a clear understanding of what the backwash solenoid does I would certainly like to hear it. I realize that it comes on periodically to back wash the membranes but cannot understand the water movement when it opens.
Car Wash Forum
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Spot Free Saga Continues
- Thread starter Buzzie8
- Start date
MEP001
Well-known member
RO systems don't have a "backwash" feature - the solenoid you mentioned just opens and allows all the flow to go to reject without building any pressure on the membrane.
It sounds like, given the product/reject ratios, that you're making RO like you should be. If you're getting less than you usually do, the pump might not be fully primed.
It sounds like, given the product/reject ratios, that you're making RO like you should be. If you're getting less than you usually do, the pump might not be fully primed.
