So I just changed my RO membrane a couple of weeks ago and it doesn't seem to be working right. My TDS is reading 60+ and my DI is already 3/4 exhausted. I changed the membrane from 100gpd down to 75gpd because our new house has lower water pressure (51), and 75gpd should give me 98% efficiency. I changed all filter, 75gpd membrane, 75gpd flow restrictor, DI resin, and also hooked up a float valve.
RODI system is hooked up after the water softener system and comes in at 313, and is now coming out at 60. Any thoughts?