My 2hp whisperflo motor died. Tripped breaker and when reset, the motor makes a lot of noise and trips again. I know I can just replace the motor side of the pump, but would like to know options for getting a smaller motor and/or 2 speed. Can I put a 2 speed motor on my whisperflo wet side of the pump? I'd rather not buy an entire new pump, unless there's significant cost justification.
21,000 IG pool with spa
2" suction and 2" returns
Aqualogic PS8 SWCG
Polaris 280 w/ booster pump.
Pentair Clean & Clear (320 I think)
I run the pump for about 6-8 hours a day. I noticed a big jump in electric bills when the pool was put in.
From a link I found by Harward pump sizing, I think I have about 53 ft of head. Does that sound right? Clean filter pressure is about 18. I believe the 2HP is way too big for my pool.
O1 - Drop down to a 1.5hp pump. The pool store said I have a "universal" impeller and going down to a single speed 1.5hp, I would not need to change the impeller. This would be about $200.
O2 - Get a two speed pump, run longer on lower speed. Can I do this and keep the same wet side part of the pump?
O3 - Replace entire wet and dry side with a new pump. What do you recommend? I'm assuming that would be $750 or more, so I don't think that's a good option for me right now.
Q1 - If I get a lower hp pump, or a multi speed, I would need to run the pump longer, right? I assume the lower speed or lower hp operate at such a lower cost that running longer would still be cheaper.
Q2 - With my Aqualogic PS8, I think it can be programmed for two speed pumps. Will that work with intelliflows or other new pumps that you might have recommended in O3 above?
Thanks. Glad this died during winter and not summer. I'll add chlorine for a bit until I decide what to do.