I purchased a home with a pool in October of 2024. The pool filter pump failed and instead of putting a new pump in I believe the sellers swapped the filter pump with the water feature pump. When I moved in the pool filter pump was 2 HP and the water feature pump is 1 HP. The water feature has 5 scuppers about 2 feet of the ground. That's 10 feet of head. I calculated a 3/4 HP motor should be on the filter. I put a 3/4 in on the water feature and the motor over heats in less than 5 minutes. I think it can't handle the lift. The old motor was also a 56y and the new motor is 48y. Some one mentioned if I switch from a 56 to a 48 to change out the impeller to. Thanks.
Pool motor sizing.
- Thread starter Thomas1966
- Start date
- Jul 21, 2013
- 64,954
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Welcome to TFP.
Motor HP must always be greater than or equal to impeller HP.
If your pump has a 1 HP motor and impeller, then changing to a 3/4 HP will overload the motor with the result you are getting.
Show us pictures of the pumps and the old and new motor data plate.
Motor HP must always be greater than or equal to impeller HP.
If your pump has a 1 HP motor and impeller, then changing to a 3/4 HP will overload the motor with the result you are getting.
Show us pictures of the pumps and the old and new motor data plate.
- Jul 21, 2013
- 64,954
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Show me the labels on the front wet end of the pumps. You just showed the motor data. Need to know the model number of the pump and this the impeller.
- Jul 21, 2013
- 64,954
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
It looks like you have Pentair pumps - either Whisperflo or Superflo.
You may need to open them up and see what model number impeller is in the pump to properly size the motor or change the impeller.
Impeller......Total HP.
073126.........0.95
073127.........1.25
073128.........1.65
073129.........2.20
073130.........2.60
073131.........3.45
You may need to open them up and see what model number impeller is in the pump to properly size the motor or change the impeller.
Impeller......Total HP.
073126.........0.95
073127.........1.25
073128.........1.65
073129.........2.20
073130.........2.60
073131.........3.45
- Jul 21, 2013
- 64,954
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
073128.........1.65
Pentair - WhisperFlo 011513 Full Rated Energy Efficient 1 HP Pool Pump, 115V/230V
Service Factor: 1.65
Horsepower: 1 HP
Amp Draw: 14.8/7.8-7.4
Pentair Whisperflo 1HP Energy Efficient Pool Pump 115V 230V | WFE-4 011513 Parts
Pentair - WhisperFlo 011513 Full Rated Energy Efficient 1 HP Pool Pump, 115V/230V
Service Factor: 1.65
Horsepower: 1 HP
Amp Draw: 14.8/7.8-7.4
Pentair Whisperflo 1HP Energy Efficient Pool Pump 115V 230V | WFE-4 011513 Parts
I am totally going to go for a new impeller. I think the pool filter was a 1 HP and the water feature was the one without the HP rating and the seller swapped them. For a quick fix and sale. Thanks for the impeller information.
Pentair Whisperflo 1HP Full Rated Pump WFE-4 Part Number 011513.
1.0 HP x 1.65 SF = 1.65 total hp.
073128.........1.65
1.0 HP x 1.65 SF = 1.65 total hp.
073128.........1.65
I'm going to try a smaller impeller and maybe switch to 2 new motors next swimming season. Some home owners and pool men are not so great. I need to bond the motors still. They didn't do that.
The new motor is rated at 0.95 total hp.
The only impeller that will work is the 073126.
Impeller......Total HP.
073126.........0.95
073127.........1.25
The only impeller that will work is the 073126.
Impeller......Total HP.
073126.........0.95
073127.........1.25
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