Pump and Filter Problem

by Beth
(Tallapoosa)

I just open my pool and my pump will start off at between 5-10 pressure, but after 1-2 hours, it is on 15 pressure and not pushing much water at all. Please tell me what to do. It is a sand filter and the pool is 28x52. The pump is 1 and a half horse power. I have tried backwashing, any more idea?
thanks Beth

Hi Beth. My first guess would be air getting into the system. Make sure your hair and lint pot has a good seal. Check the return flow for any signs of excess air bubbles.

If the sand is clogged a very long run in backwash might take care of it. An extremely dirty pool might require frequent backwashing until the water is clean.

If nothing else works, and you are sure the rest of the system is operating correctly you could change the sand in the filter. This should be done about every five years, it might be a good time to do it.