Pressure issues, need help
I have a pool and spa attached that has a fountain with DE filter. The spa/fountain is flowing water back into the pool.
I noticed the fountain has no pressure (no water flowing back into the pool). Pressure gage reads 30. I have backwashed and the pool runs great for an hr or so (starts at 20psi). Then back to no pressure. It appears looking at the motor; the strainer and basket are not completely filled with water. So appears it is losing prim.
I can open the strainer/basket and screw it back on. Again runs great for an hr or so then back to no pressure.
So I open the strainer/basket, took off o-ring and cleaned it, clean the strainer/basket and lubed o-ring and strainer/basket. Cleaned skimmers and started the pool back up. Pressure read 20. Again runs great for an hr or so then back to no pressure.