The builder was back out this week. They closed 2 of my 4 returns and still didn't solve the issues and I think will cause problems long term as my only returns are now on the end of the pool opposite the skimmer. Nothing on the sides mid pool. They "think" its a bad pressure switch though I am not certain. I started looking at the curves on the pump and some of the other specs from Hayward and I think they grossly undersized the pump.
The poll is about 22,000 Gals so needs 53GPM to turn over the pool. The Filter PSI is normally 20 which means 46.2 TDH on the return side plus assume there is at least 15 TDH on the suction side (its 185 foot run and 4 ft rise above the pool deck) that would put the TDH at 60 when you look at the curves for the TriStar Max Flo 500 it will never meet the required turn over.
the other issues I have found is the salt cell flow switch is 4 inches from a 90 degree bend. The MFG instructions says there needs to be at least 12 inches of straight pipe before the flow switch. This may be also causing the issue with the salt cell shutting down on anything less than 100% RPM on the pump.
The poll is about 22,000 Gals so needs 53GPM to turn over the pool. The Filter PSI is normally 20 which means 46.2 TDH on the return side plus assume there is at least 15 TDH on the suction side (its 185 foot run and 4 ft rise above the pool deck) that would put the TDH at 60 when you look at the curves for the TriStar Max Flo 500 it will never meet the required turn over.
the other issues I have found is the salt cell flow switch is 4 inches from a 90 degree bend. The MFG instructions says there needs to be at least 12 inches of straight pipe before the flow switch. This may be also causing the issue with the salt cell shutting down on anything less than 100% RPM on the pump.