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Thread: Pump HP ratings

  1. Back To Top    #1

    Join Date
    Jul 2007
    Location
    Forked River, NJ
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    9

    Pump HP ratings

    Does anyone know the reason for uprated pumps? I was told I would receive a 1 1/2 HP pump but it seems to have the same specs as the 1 HP. It is a Jandy pump.
    16 X 32 18,000 gal IG vinyl, Jandy 460 cart filter, Jandy Lite2 250,000 BTU natural gas heater, Jandy Aqua Pure 1400 SWG, Haywood Color Logic Light,
    Blue Pearl robotic cleaner

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879
    There are several different ways to rate a pump, up rated HP, max rated HP, full rated HP, brake HP, and so on. The exact same pump can be listed with three or four different HP ratings by using the different systems. The only numbers you can really compare are the brake HP. You get brake HP by multiplying the listed HP times the service factor (often called SF).
    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

  3. Back To Top    #3

    Join Date
    Jul 2007
    Location
    Forked River, NJ
    Posts
    9
    Thanks for the info. I will check it out. The pool seems to be doing well with this pump. It has about 18,000 gals with a Jandy 460 cart filter.
    16 X 32 18,000 gal IG vinyl, Jandy 460 cart filter, Jandy Lite2 250,000 BTU natural gas heater, Jandy Aqua Pure 1400 SWG, Haywood Color Logic Light,
    Blue Pearl robotic cleaner

  4. Back To Top    #4
    It is a 1 hp pump. The rating is really a sales trick. Most motors will put out about 50% more than there
    standard rating. The standard ratings area for continuous duty(24/7) and the uprated is for intermittent
    duty. It sounds like your a getting a deal but you are not.

    Cliff s

  5. Back To Top    #5
    Guest
    Sometimes you can get a deal if you know what you are doing. Often the uprated model of a pump is less expensive than the fullratred model with the same brake HP (i.e. the uprated 1.5 hp could cost less than the 1 hp full rated model even though they are exactly the same pump!)

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