I have had my RO unit for a while now (this one probably 4+ years), never replaced the membrane only the carbon and sediment filters before it. Because of the low water pressure there is a booster pump and the normal input to the RO Unit is around 80-90 psi. The output TDS of the water seems fine about what I have seen for a while now at the new house around 2-4TDS before the DI. It seems that recently the output speed has gone way down, when I used to be able to make 100+ gallons in a day it's more like 3 days now.
Any ideas what's going on? Is the RO membrane reaching end of life and need replacement?
Any ideas what's going on? Is the RO membrane reaching end of life and need replacement?