I just hooked up a booster pump to my RO system tonight. Until this point I had been running the standard balanced-diaphragm auto-shut-off and a float valve. My pressure at this new place is only 40psi so I ordered the booster pump kit from BRS.
With the unit running, when I manually close the float valve the booster pump shuts off after approx. 20 seconds. It stays off for approx. 5 seconds and begins cycling on for 5 seconds and off for 5 seconds. I let this go on for a minute before I either release the float valve or shut the system off.
My system is plumbed as follows:
Tap water feeds into booster pump. Booster pump to sediment. Sediment to carbon. Carbon into balanced-diaphragm auto-shut-off, then into RO membrane. Ro membrane to DI. DI to balanced-diaphragm auto-shut-off, then into 40psi booster pump pressure switch (the switch that comes with the booster pump kit from BRS where I got it). Switch through 30' run of RO line to float valve in ATO container.
I know the suggested plumbing is to put the sediment filter before the pump to "protect it" but I'm not worried about a little sediment...I have extremely clean water and new pipes in the house. My only concern is why the system cycles on and off.
My theory is that the pressure will build in the product line after the float valve is closed until it reaches 40psi and the pressure switch shuts the booster pump off. At that point the pressure must be leaking down to below the trigger. I have no connections between the pressure switch and the float valve. The pressure switch is brand new.
Thoughts?
Thanks.
With the unit running, when I manually close the float valve the booster pump shuts off after approx. 20 seconds. It stays off for approx. 5 seconds and begins cycling on for 5 seconds and off for 5 seconds. I let this go on for a minute before I either release the float valve or shut the system off.
My system is plumbed as follows:
Tap water feeds into booster pump. Booster pump to sediment. Sediment to carbon. Carbon into balanced-diaphragm auto-shut-off, then into RO membrane. Ro membrane to DI. DI to balanced-diaphragm auto-shut-off, then into 40psi booster pump pressure switch (the switch that comes with the booster pump kit from BRS where I got it). Switch through 30' run of RO line to float valve in ATO container.
I know the suggested plumbing is to put the sediment filter before the pump to "protect it" but I'm not worried about a little sediment...I have extremely clean water and new pipes in the house. My only concern is why the system cycles on and off.
My theory is that the pressure will build in the product line after the float valve is closed until it reaches 40psi and the pressure switch shuts the booster pump off. At that point the pressure must be leaking down to below the trigger. I have no connections between the pressure switch and the float valve. The pressure switch is brand new.
Thoughts?
Thanks.
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