amcvay1979
02/10/2016, 04:10 PM
Hello, I've been having issues w/my RODI system. When brand new (less than a year) the TDS after the membrane was typically 4 or 5. It crept up gradually to 20-35 so I've changed almost every part of my sytem. New filters (sediment, 2 x carbon blocks) and even a new Dow Filmtec membrane about 3-4 months ago.
My incoming TDS is 120-140 and that's fed to my RODI after a Whirlpool whole house regenerating filter and a softener. The temp of my water right now is really cold, probably 50-60 degrees (I can verify this and get an exact number) and after balancing my product/waste ratio to 1:4 my pressure is around 45-50 psi. My DI resin takes it down to zero and that's fine, but I'm going through it much quicker than I need to.
I've thought about bumping the pressure up by running 1/2 inch hose from my feed water to the RO/DI hoping to increase pressure, not much I can do about the temp in Feb in the midwest though. Every filter on my unit is less than 4 months old. When I replaced the membrane TDS were again back to 4 and this is where I'd like to keep it.
Spent carbon blocks? Fried membrane (again?), should I feed my RO before it goes to the whole house or softener? I'm at loss for how this thing won't keep performing.
My incoming TDS is 120-140 and that's fed to my RODI after a Whirlpool whole house regenerating filter and a softener. The temp of my water right now is really cold, probably 50-60 degrees (I can verify this and get an exact number) and after balancing my product/waste ratio to 1:4 my pressure is around 45-50 psi. My DI resin takes it down to zero and that's fine, but I'm going through it much quicker than I need to.
I've thought about bumping the pressure up by running 1/2 inch hose from my feed water to the RO/DI hoping to increase pressure, not much I can do about the temp in Feb in the midwest though. Every filter on my unit is less than 4 months old. When I replaced the membrane TDS were again back to 4 and this is where I'd like to keep it.
Spent carbon blocks? Fried membrane (again?), should I feed my RO before it goes to the whole house or softener? I'm at loss for how this thing won't keep performing.