Removing WhisperFlo Pump Diffuser

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Water treatment guide

- How to replace a WhisperFlo pump Seal, five simple steps!

Removing the Diffuser

Once you've removed the pump housing next remove the diffuser by unscrewing the two hex screws that hold the diffuser to the seal plate. Make sure you keep the screws and diffused gasket (the black o-ring around the diffuser nozzle in a safe place. Once you completely remove the diffuser, you should see the Impeller behind it.

The diffuser channels water in to the impeller and reduces noise and improves pump efficiency.


WhisperFlo pool pump Parts

Do you need to rebuild your Pentair WhisperFlo pump?

Well, we have a convenient and affordable solution with every part needed to rebuild your pump packed in one kit:

The GO-KIT-32 includes:

Pump seal assembly (part #16)
Seal Plate O-ring
strainer cover O-ring (part #3)
Imperller O-ring (part # 15)
Diffuser gasket (*Part #9)

Replacing your Pentair WhishperFlo pump motor?
Our original Pentair replacement motors and rebuild kit will save you a lot of money! [Motors] and [rebuild kit]



Pool and Spa Pump Accessories


Pool Pump wiring conduit with 4-wire conductors, elbow and nipple

Make installation of a pump easy and safe with this 4-wire 6 ft. electrical conduit built with heavy-duty all-weather material for outdoor installation. Includes metal elbow and nipple to make connection to any pump very simple.

Aladdin MagicLube #631 Lubricant for o-rings, bearings PTFE based 5 oz. for pool and spa underwater application
Praher CPVC coupler with O-ring 2" SLIP x SLIP for pump and heater plumbing
1 1/2" SLIP x 1 1/2" SLIP
2" MIP x 2" SLIP
1 1/2" MIP x 1 1/2" SLIP
Coupler 2" SLIP x 2" MPT for 2" PVC pipe
Coupler 1 1/2" SLIP x 1 1/2" MPT for 1 1/2" PVC pipe
CPVC pipe 2" threaded ends - cut-in-half and use for pump suction/return
CPVC pipe 1 1/2" threaded ends - cut-in-half and use for pump suction/return
Spring-Loaded Check Valves: When two or more pounds of water pressure is applied the spring-loaded gate opens. The valve relys on a small internal spring to close the disc whenever water is not moving in the intended direction.
Spring-loaded check valve 1/2 lb. pressure 2" pipe
Spring-loaded check valve 1/2 lb. pressure 1 1/2" pipe
Check Valve: these valves insure that water flows in one direction only and prevent back-flow when pool/spa pump is turned off
7235 - 1 1/2" - 2" 180 degree Jandy check valve
7305 - 2" - 2 1/2" 180 degree Jandy check valve
7511 - 1 1/2" - 2" 90 degree Jandy check valve
7512 - 2" - 2 1/2" 90 degree Jandy check valve
Lubricants and sealants for wet bearings, motors, pumps, O-rings. It protects metal and plastic (PVC) from common pool chemicals and salt
Part #
Zodiac Jandy AquaLink RS Remote Control relay kit for 2-Speed pumps
Provides control of a high voltage, 2-speed pump motor.
20 Amps Max
2HP Max at 220 VAC
Aqua Shield Lubricant for pump strainer O-ring 8 oz.



Pentair WhisperFlo Strainer Basket part # 070387