Over the last few weeks, I’ve noticed that our RO system output is falling. I’ve got a 3-stage system and an in-line 5-micron sediment cartridge. The membrane is a Pentaire GRO 50 water saving membrane (1:1 drain to permeate ratio.). The membrane is less than 9 months old.
We tested the system yesterday, and water gushed out the upper components, but when we got to just downstream of the membrane, it only dripped out. I tested the TDS and it was 8.
Our water is good - Lake Michigan water treated by Milwaukee waterworks. Medians: TDS = 180; calcium = 34; hardness (as CaCO3) = 136.
The chlorine -as total chloramine residual— is 1.57mg/L . Could this be the cause of early membrane failure?
We tested the system yesterday, and water gushed out the upper components, but when we got to just downstream of the membrane, it only dripped out. I tested the TDS and it was 8.
Our water is good - Lake Michigan water treated by Milwaukee waterworks. Medians: TDS = 180; calcium = 34; hardness (as CaCO3) = 136.
The chlorine -as total chloramine residual— is 1.57mg/L . Could this be the cause of early membrane failure?