Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Pentair Whisperflo replacement

  1. Back To Top    #1

    Join Date
    Aug 2015
    Location
    bakersfield ca
    Posts
    2

    Pentair Whisperflo replacement

    I have a Pentair Whisperflo 1hp model WFE-4 part number 011513 that is roughly 10 years old. I have a brand new pump of the same model. The old pump engine is shot. I am looking for the easiest way to swap the pumps out. It appears the plumbing will match up, but I will probably have to cut and replace some of it to perform the swap? My other question is, can I just remove the housing on the old pump (looks like 6 bolts) and bolt up the new one to avoid messing with any of the plumbing? Is it that simple? Just six bolts?
    Attached Images Attached Images

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,947

    Re: Pentair Whisperflo replacement

    Typically with a swap like this you should be prepared for the following:
    - Mounting the new pump to your base (should be fairly easy; different screw/bolt pattern not a big issue)
    - Connecting your plumbing intake and outtake lines; take pics on your phone first before going to the store. Grab a couple threaded unions for easy assembly/disassembly later, some extra straight PVC, curves, etc, and of course PVC sealant.
    - You'll probably need to attach a power cable to the new pump. If your old one is still in good shape, that may work. Or just use it as an example when you connect the new one.
    - Might want to apply a fresh bead of silicone to the pump basket O-ring for that first start-up.

    I can't think of anything else at this time though. Good luck!

    - - - Updated - - -

    Trying to save the old housing and match-up to the new one to save a step might work, but could be risky. Might still require a good seal between the old and new, even then, if it's that old, complete replacement might just be more practical.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Pentair Whisperflo replacement

    Hi Smitty,
    I would recommend replacing the whole thing. Even if you need to do a litle PVC work, its very easy. Especialy if you have Unions at the such and return sides on the pump.
    Having said that, your existing plumbing should fit just fine since the pump models are the same.

    If you consider replacing only the motor portion, then it may be that you will have to replace the some pump seals which is much more tedious than just doing some re-piping.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  4. Back To Top    #4

    In the Industry

    Join Date
    Jun 2015
    Location
    Wildomar, California
    Posts
    423

    Re: Pentair Whisperflo replacement

    I'll be the dissenter on this one. 6 bolts are it, plus the electrical. If you have had any issues with leaks in the plumbing, then replace the whole pump. Using unions on the suction and discharge of the pump will make things much easier to work on in the future.

  5. Back To Top    #5

    Join Date
    Mar 2015
    Location
    Sugar Land , TX
    Posts
    388

    Re: Pentair Whisperflo replacement

    Here is a vid of just motor replacement:
    Pool Motor Replacement - Pentair Whisperflo - YouTube
    8500 gallon IG Pebble Sheen with Spa. 3hp Pentair VS Intelliflo ( pool ), 3/4 hp WhisperFlo ( water feature ),Pentair Racer, 400K Pentair heater, Pentair 500sqft Cartridge filter, EasyTouch 8, Stenner 45mp2 15gallon wired to ET8

  6. Back To Top    #6

    Join Date
    Aug 2015
    Location
    bakersfield ca
    Posts
    2

    Re: Pentair Whisperflo replacement

    I went with this option. Was as easy as 6 bolts and 3 wires. No seals to mess with, and no leaks. Amazing pressure that I have been missing for years.

  7. Back To Top    #7
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,947

    Re: Pentair Whisperflo replacement

    Happy to hear it all worked out for you.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •