Hey All, I currently have a Pentair WF 28 2.0HP Single Speed motor but it is dying and I need a replacement. I know next to nothing about pools and have been reading articles on this forum and from around the web elsewhere. The pool is roughly 9,000 gallons with no water features or spa. It does, however, have solar heating. Should I replace it with the same one? Or opt for say a 2.5HP version? Thanks in advance for all of the help.
New Pump Motor Help
- Thread starter ABSiNTH
- Start date
Smykowski said:
Thanks! The filter is a 4 filter cartridge type.
Oh also it has a SWG (Pentair Intellichlor IC20).
I am also not sure what the electrical situation currently supplied is (115 or 230 volt).
Welcome to tfp, ABSiNTH 
Definitely do not go bigger, your current pump is already too big.
What shape is the "wet end"...i.e. the pumping end of the pump?
One option would be to change out your current motor for a 2-speed of the same size and then you would run on low for most of the time except when you need solar heating. Another choice would be to replace the current motor and pump impeller with a smaller ones. Both of the these options will likely save you electricity, the second more than the first.
If there is just a singe breaker feeding the pump, then it is probably 115 volt, if there are two breakers feeding the pump, then it is likely 230 volt. We need to know to help select a new motor.
If you do decide to replace the pump, make sure to go with at least a 2-speed pump and probably no bigger than a 1 hp (we can help you select it).
Definitely do not go bigger, your current pump is already too big.
What shape is the "wet end"...i.e. the pumping end of the pump?
One option would be to change out your current motor for a 2-speed of the same size and then you would run on low for most of the time except when you need solar heating. Another choice would be to replace the current motor and pump impeller with a smaller ones. Both of the these options will likely save you electricity, the second more than the first.
If there is just a singe breaker feeding the pump, then it is probably 115 volt, if there are two breakers feeding the pump, then it is likely 230 volt. We need to know to help select a new motor.
If you do decide to replace the pump, make sure to go with at least a 2-speed pump and probably no bigger than a 1 hp (we can help you select it).
Awesome thanks. The pool builder said that they put a single speed 2HP in there since the water has to be pumped 30-35ft up onto the roof for solar heating. Let me check the breaker situation and get back with you guys.
That is a high roof, third story? I think a 1 hp whisperflo can do it, but it will depend on the rest of your plumbing.
With the extreme heat/weather in Las Vegas and me running the pump for roughly 7-8hrs/day, will that environment put a lot of added stress on a lower powered motor? I am checking the panel now...
Ok, the house's main breaker panel has two breakers teamed up labeled pool so it appears to be 230v.