Sizing a Replacement VS Pump

  • 360 Views
  • Last Post 30 October 2017
JohnAZ posted this 30 October 2017

I'm in need of some assistance.

I have an old large, kidney shaped diving pool. I calculated the pool volume to be 24,000 gallons. 

I took some pressure/vacuum readings at the pump and calculated 66 feet of head on the pump when at 65 gpm of flow.  I have one 1.5-inch suction line and two 1.5-inch return lines.  My filter is a Pentair TR60 sand filter with a 60 gpm flow rate with a slide valve.

I do not have a spa or any water features.  I have a Barracuda G3 suction side pool cleaner and an Ecomatic salt system.

 I currently have a 1HP Pentair WhisperFlo WFE-4 single speed pool pump that is dying, and I want to replace it with a variable speed pump.  

I am trying to decide between the 1.5HP Pentair VS 342001 or the 3HP Pentair IntelliFlo 011018.  I am leaning towards the VS 342001 since its pump curve at full speed matches the pump curve of the existign WFE-4 pump, and it is $300 cheaper.

Any help would be appreciated.

InyoRob posted this 30 October 2017

Hello John - We would recommend the Pentair 342001 VS pump. The 1.5HP suits your pool specifications better than the 3HP. The 3HP would be overkill for your 1.5" lines and TR60 filter.

Pentair VS PUMP VAR SPEED W/ TIMER SUPER FLO PUMP 115/230V - 342001

Close