Water pressure problem
 

My fresh water lines keep losing pressure. After testing the electrical connection and reattaching the pump, I had pressure for two days then lost pressure again so had the water pump changed. Again it worked for about two days and is now losing pressure again. Any ideas what could be causing this?

Are losing pressure when hooked to city water as well? If so check the cap on the antifreeze suction line used to winterize, they've been known to suck air causing lose of pressure.

If you aren't losing pressure when connected to the city water line check the check valve at the city water connection.

Found out the new water pump is working fine. It was my sprayer on the kitchen sink that was blocked from grit inside the screen! Duh!