Fellow Appliantologists,
We've had continuing issues with our under-the-sink RO system. Mainly stuck valves and wasted water. Last plumber to look at it said that maybe we didn't have enough water pressure for it to function properly. Not sure what that has to do with sticking valves. We're on a well and use a jet pump to pressurize our home system. With the current pump settings, it kicks in when the pressure drops to 30 psi, and kicks off when it hits 48 psi. I know that's lower than city pressures, but from what I could find online that's enough pressure for an RO system to work. Especially since we have a softener upstream so the RO gets fed very low TDS water.
For what it's worth, the RO is a "Reversed Osmosis Drinking Water Systems" Model GRO-5-Stage. A little over one year old. Connected via a real tee and not one of those self-piercing hacks. It should be using 1 g to produce 1 g ... important for us with our well. It's drying up like most in Arizona.
So is the house pressure an issue, or did I just get a bad unit with cheap valves. Replaced them twice now. Thanks!