RODI unit not working after filter change

[chunkysoup56]

Recently replaced all filters along with a new membrane for my BRS 4 stage unit. Ever since it has been limited to a slow drip of output water..... I’m talking maybe a couple cups worth a day.

Any thoughts? Pressure into the unit is 50 PSI (same as always) and I did let the unit run for several hours after changing the filters

 

[John Smith]

I suspect your RO membrane might be the culprit. You can test by removing the inlet, the outlet and the drain tubes one at a time to check water flow. I assume the new membrane has the same rating as the old one (25, 50 or 75 gpd) if you change the rating, you must also change the flow restrictor.

 

[skim]

Have you ever changed the Flow Restricter?

 

[chunkysoup56]

Have you ever changed the Flow Restricter?

never changed the flow restrictor..... I did replace with a non BRS membrane (same gpd rating) and I’m beginning to think this is the problem.

 

[AZMSGT]

never changed the flow restrictor..... I did replace with a non BRS membrane (same gpd rating) and I’m beginning to think this is the problem.

Brand doesn't matter, most are made by Dow Chemical with a different label. What GPD RO filter did you have and what did you install? 100GPD filters need 60PSI.