Whisperflo Dual Speed Full Rate 1.5 HP Pump (WFDS-6)


Part # 011522

By Pentair Pool Products

  1 Average  



Part # 011522

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code WFDS-6

Alternate Part #'s PEN011522

Product Description

Inyo Recommended Pumps

WHISPERFLO incorporates innovative hydraulic engineering to move water more efficiently and quietly than competitive pumps. Under typical operating conditions, WHISPERFLO offers the greatest water flow of any high performance pump—yet with the lowest electrical consumption. To circulate more water in less time and at the lowest cost, choose quiet, reliable, WHISPERFLO.

 Additional features include:

  • Lower operating costs. Less horsepower required to produce needed water flow, even when used in pool/spa combinations and when operating in-floor cleaning systems.
  • Extremely quiet operation documented in rigorous ETL tests.
  • Patented oversized strainer basket reduces cleaning frequency.
  • 1 Year Warranty
  • High-efficiency impeller maximizes water flow.
  • Life-extending diffuser wear-ring prevents uneven impeller wear.
  • Thicker seal plate withstands loss of prime conditions.
  • Available in standard and energy-efficient models.

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 Pentair Whisperflo Dimensions

Pentair Whisperflo Pump Curve
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Product Specifications

1 1/2 HP
Port Size:
2 in.
Service Factor:

?     Asked on 1/26/2021 by John

I have a WFDS-6 pump and the motor needs to be replaced can i change the motor out to a variable speed instead of the two speed and if so which one.

A  Answered on 1/27/2021 by InyoPools Product Specialist Hector F.

Hi John, the correct variable speed replacement motor for the motor on a Pentair WhisperFlo model WFDS-6 pool pump is the ECM27SQU. You will also need a Pentair WhisperFlo seal kit when you replace your motor. We put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.

?     Asked on 10/4/2019 by Bart Knaphus

I now have a WFE-6 connected to my pool. Does this Dual Speed come complete? Meaning, will I be able to just drop this in replacement of my old whiperflo? The schematics look exact but how about electrical? Will this be the same simple electrical hook-up?

A  Answered on 10/10/2019 by InyoPools Product Specialist Michelle B.

Hello, Yes, this will fit exactly with your old whisperflo.

?     Asked on 4/25/2019 by Steve Dunn

I want to upgrade to a dual speed from my 1.5hp single speed. Can I run the dual speed at low speed most of the time and only run at high speed for " special situations." I have a 32000 gal pool with no water features . We use an injection chlorinator and have a robot vacuum so vacuuming is not an issue. Thanks

A  Answered on 5/5/2019 by InyoPools Product Specialist Lennox H.

Hi, Steve. Yes, you can operate a dual speed pump that way if your pool Total Dynamic Head (TDH) will allow the pump to provide sufficient water flow. You will either need a Toggle Switch or Controller - T10604R

?     Asked on 4/24/2018 by

Would a pentair intellipro 2 VST be a lot more energy efficient than this pump? Trying to decide if it is a worthwhile upgrade to save energy

A  Answered on 4/24/2018 by InyoPools Product Specialist Lennox H.

Hi. Yes, the IntelliPro 2 VST will be more efficient than this WFDS-6. 

?     Asked on 1/16/2017 by Glenn

I want to replace my pump this year, I have an in-ground pool Approx 24,000 gallons, hayward aquarite salt generator cell Aqr15. With a pentair Clean and Clear cartridge filter 420 sqft . The existing piping on the return is two 1-1/2" inlets . the cartridge filter has 2" pipe in and out. But the discharge line is only 1-1/2" which feed two discharges into the pool. Can you help me on the right pump to bye Thanks Glenn

A  Answered on 1/17/2017 by InyoPools Product Specialist Scott W.

Are you looking for a single speed, dual speed or variable speed pump?

?     Asked on 6/2/2015 by Dake

I am having this pump motor overhauled and the technician is unable to locate a stationary switch for this model. Here are the numbers he gave me WFDS-6 / 0118252 Motor #177456 Are you able to supply me with this switch?

A  Answered on 6/2/2015 by InyoPools Product Specialist Patrick P.

We do have this Stationary Switch in Stock here.

?     Asked on 4/20/2015 by Steve

I think my earlier question was not clear. I have a 1.5 hp whisperflow pump, and would like to change the motor on it to a 1 hp. 1: Are the motors interchangeable? 2: Will I need a new impeller?

A  Answered on 4/20/2015 by InyoPools Product Specialist Andy O.

Steve- You will be able to drop down to a 1hp with no issues. For example; you could get the B982 motor .I would also recommend changing the impeller to match the hp of the motor, which would be 5074-27B. As always I change the seals while you've already got everything taken apart, which would be GOKIT32 or GOKIT32SALT.

?     Asked on 4/19/2015 by

My pump is oversized, can I change from a 1.5 hp motor to 1 hp on a whisperflow?

A  Answered on 4/19/2015 by InyoPools Product Specialist Joe S.

Hello Steve, Yes if you are over size you can go down to a smaller pump. The whisperflo is a high head pump. Which at 1hp will still operate very efficient

?     Asked on 5/12/2013 by Guest

Do you sell a 2 speed toggle switch for the Pentair Whisperflo pump?

A  Answered on 5/12/2013 by InyoPools Product Specialist Patrick P.

Yes. You can find the Pentair Whisperflo 2 speed toggle switch here: http://www.inyopools.com/Products/07501352033552.htm

?     Asked on 2/16/2012 by Guest

I just finished replacing the shaft seal on my booster pump. As soon as I turned the pump on water was leaking from the shaft seal. Is it defective or am I doing something wrong?

A  Answered on 2/16/2012 by InyoPools Product Specialist Patrick P.

Depending on the model, the installation of a booster pump shaft seal can be slightly different than a pool pump shaft seal. Some booster pump and pool pump shaft seals require that a silicone sealant be used on the outer areas of the metal seat of the shaft seal. The seal will need to be lightly hammered into the body of the pump. You can use a 1 inch PVC coupling or a piece of 1 1/4 inch PVC pipe and a rubber mallet. This procedure will apply to any pool pump or booster pump using a >PS-1000 style shaft seal.

?     Asked on 6/15/2006 by Guest

How does the dual speed feature of this pump work?

A  Answered on 6/15/2006 by InyoPools Product Specialist Patrick P.

Some dual speed pumps have a toggle switch in the back of the motor to change speeds manually, but many do not. Generally you would need to tie this dual speed pump into one of our dual speed pump timers/controllers. One of the more popular models is the Digital PE153 series. This timer has 3 functions: one to turn the pump on and off, a second auxiliary to switch from high speed to low speed, and then a third for any other piece of pool equipment. You may view these controllers through the following link: Intermatic Timers


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