Hi everyone! We r planning on adding DE to our sand filter today. But we are confused regarding the PSI. Wouldn't adding the DE, and catching more debris, cause the PSI to go lower, not go up?
As the filter gets dirty, it is harder for the pump to push water through it, therefor the pressure gage on the filter will go up and the flow from the returns goes down. Instead of thinking of the gage as a "Pressure" gage, think of it as a "Resistance to flow" gage.
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Welcome to TFP! For a wealth of pool care information please check out our free Pool School. If you are in need of specific help then we encourage you to Register and ask us here in the forum!