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Thread: Pentair Challenger Diffuser Designs. Why different?

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    Pentair Challenger Diffuser Designs. Why different?

    I have a 3/4 hp Pentair Challenger. I am curious why my diffuser has a different design than most that I see, including on the parts diagram at Pentair.

    Mine looks like this.

    355094-2.jpg

    Instead of completely round like seen at the link below. Does anyone know what is the purpose of the different designs?

    Amazon.com : Pentair 355270 Diffuser Replacement Challenger High Pressure Swimming Pool Inground Pump : Outdoor Spas : Patio, Lawn Garden
    10,000 gallon
    Viking Freeform Fiberglass Inground Pool. FNS Plus DE Filter Pentair Challenger .75hp pump

    NC KANSAS44

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    mas985's Avatar
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    Re: Pentair Challenger Diffuser Designs. Why different?

    I think the internal hydraulic designs are usually similar (vane placement and spacing).The picture above shows the opposite side of the vanes so it really has no impact on the hydraulics and is used for mounting only. There are many different designs and some diffusers are inserted into the pump inlet while other directly attach to the pump basket.

    But I think that diffuser is for the Challenger high flow pump and not the high pressure pump.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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