Protein Skimmer and Coral issues

[Antrias]

Originally Posted by hillegom

Are you on a well, or city water?
What is the pressure? It should be at least 60psi
If you have that, then your membrane has a hole in it. And your DI filter is depleted. Barring everything else, your DI will bring the TDS down to 0.
Check the TDS of the water coming out of the ro membrane. It should be about 95% less than your tap water.

I am on city water - it could be I don't know what i am doing with the unit but i also am sure that the DI resin is depleted now that you mention it. The unit has like a valve at the waste water line that if I keep it mostly closed i get close to 60PSI however if I fully open it i get maybe 20PSI.