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Thread: variable speed pumps

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    variable speed pumps

    I have been looking at replacing my pump and just had a question about the variable speed pumps.Looking at the performance curves it seems to me that if you have more than about 20 or so feet of head,the low speeds are pretty much useless,am I looking at that wrong?
    16500 gallon plaster, BBB

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: variable speed pumps

    Yes, you are looking at it wrong. Your head pressure will not be the same on low as it is on will be much lower. On my setup on high I have a ~47 ft of head and on low it is ~10 ft of head.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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