Valve settings will have an effect on filter pressure so try different settings to see if the pressure you noticed before was due to a particular configuration:
Pool Mode
Spa Mode
Spill over Mode

As I mentioned before, your turnover is currently about 4 hours. Most you would need would be 8 hours during the peak of the summer. Any reason you are running the pump 10 hours?


1) 2 Speed 2 HP pump replacement. Reduce your power bill by 69% with 8 hour run time at low speed.
2) 2 x 1 speed pumps. Re plumb 2 HP pump for Spa Jets only and purchase a 3/4 HP pump and plumb from for pool only. Reduce your power bill by 67% with 6 hour run time.
3) Reduce pump run time for current configuration. Reduce your power bill by 20%.[/QUOTE]


--Sorry, I don't know how to highlight your quote--
I ran the pump 10 hrs/day based, I guess, on the man I bought the house from. I believe that's what he told me, though he may have been guessing just like me. That was before I found this website and discovered there are calculators to estimate pool volume and water flow and such as that. Concerning adjusting valves to influence filter pressure, I spent some time playing with the system and got the following indicated pressures: Main drain only-25psi Main drain50%skimmer50%-30psi Skimmer only-30psi Can't recall whether I pulled from the spa but that's something I rarely do. I usually just return about 40% through the spa to keep it flushed out. I don't have the waterfall type. Anyway, it seems I may have a blockage in the skimmer line. I'm afraid I'd have to cut the intake manifold to blow back through the skimmer.... Wonder if there's a way to pull the stuff back out through the skimmer?TIA Hal