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Thread: Replace worn difusser should I upgrade

  1. Back To Top    #1
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Murrieta, CA

    Replace worn difusser should I upgrade

    Hello All,
    My pump (Sta-rite Duraglas) was making some strange noise took it apart cleaned up the impeller put it back together it appears fine.

    I've got a 92PS Impeller and 216P Diffuser 1/2 HP set. The copper ring inset in the diffuser is shot. It's not smooth and even like the image.

    I've got a 3/4 HP motor getting about 50GPM flow.

    I'm thinking of going with the 3/4 HP set 138PEB Impeller and 200PA Diffuser. I'm still working on getting a 3/4 HP 115V 2 speed.

    Looking at the flow charts I'm getting 50GPM so about 45 FT Head, if I go up one size looks like I'll get 70GPM at 45 FT Head with a single speed.

    What your opinions?

    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Replace worn difusser should I upgrade

    It all depends on what your goal is. If you want to save money in the long run, then go with the smaller impeller and a two speed motor. If you want to go with less money in the short run then go with what you have on hand.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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