View Full Version : To membrane

11/14/2012, 06:18 AM
How long until the ro membrane gets changed?
I have the 75gpd ocean reef +1.

11/14/2012, 11:46 PM
Generally we expect 2-3 years from a membrane but tap water quality has the final say. We generally use rejection rate as a guide and don't replace the membrane untill we see the rejection rate start to fall into the lower 90's or the membrane just stops producing water which can happen all at once. Some customers like to use the 2-3 years as a guide and just change the membrane regardless of performance.