I have an inground pool 15 years old. It has a 4 cartridge Pentair filter system with a Hayward pump and 1.5 HP single speed motor.
Last Sunday I cleaned the filters, restarted it, and had excellent flow and pressure was around 20psi. Walked away and didn't pay attention to the pool until Tuesday when I noticed very little flow and about 4psi. Can't figure out what's causing it. Here's what I've checked:
1. All baskets clean
2. Water level good (auto-level)
3. Moved valves to turn on/off the skimmers, creepy, and bottom returns in all possible configurations: no change. That tells me my lines are good in my thinking?
4. Inspected diffuser and impeller; all good.
5. Pump/motor all good.
6. Can see water in the pump filter basket
7. Replaced pump filter o-ring
8. Can't hear any suction noises
9. No water leaks on pressure side.
10. Opening pressure relief valve on top of filter housing produces low flow of water discharge.
11. Inspected above ground lines and don't see any defects
12. Sprayed full stream of water over valves to see if would change pressure; nothing
13. Did not take motor off pump as I didn't want to replace the ceramic seal if I don't have to.
Everything I've read my problem is on the suction side, but what am I missing here. Don't know where to go next.
Any ideas?
Last Sunday I cleaned the filters, restarted it, and had excellent flow and pressure was around 20psi. Walked away and didn't pay attention to the pool until Tuesday when I noticed very little flow and about 4psi. Can't figure out what's causing it. Here's what I've checked:
1. All baskets clean
2. Water level good (auto-level)
3. Moved valves to turn on/off the skimmers, creepy, and bottom returns in all possible configurations: no change. That tells me my lines are good in my thinking?
4. Inspected diffuser and impeller; all good.
5. Pump/motor all good.
6. Can see water in the pump filter basket
7. Replaced pump filter o-ring
8. Can't hear any suction noises
9. No water leaks on pressure side.
10. Opening pressure relief valve on top of filter housing produces low flow of water discharge.
11. Inspected above ground lines and don't see any defects
12. Sprayed full stream of water over valves to see if would change pressure; nothing
13. Did not take motor off pump as I didn't want to replace the ceramic seal if I don't have to.
Everything I've read my problem is on the suction side, but what am I missing here. Don't know where to go next.
Any ideas?