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Thread: Filter Head Loss

  1. Back To Top    #1

    Join Date
    Jun 2014
    Location
    Bellingham, WA
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    Filter Head Loss

    I have a Pentair Sand Dollar SD60 sand filter. My pump died so I'm trying to size a new one but I can't figure out what the head loss from the filter is. Can anyone help me?

    Thanks!

    Dana
    18,000 gal above ground vinyl
    Pentair Sand Dollar SD60 sand filter - 60gpm - 2.3sqft

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    May 2010
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    Tucson, AZ
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    Re: Filter Head Loss

    Pump size is not really dependant on your filter size. Just get a 1 HP 2 speed pump, or replace the motor on your existing pump.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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  3. Back To Top    #3

    Join Date
    Jun 2014
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    Bellingham, WA
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    Re: Filter Head Loss

    Thanks, jblizzle.

    How do I ensure that the pump won't run at a higher flow rate (60gmp) than the filter is rated for? The pumps I've looked at list flow rate as a function of head, which I was assuming was mostly related to the filter. The plumbing must factor in, too, but we don't have long runs. It's 1.5" plumbing.
    18,000 gal above ground vinyl
    Pentair Sand Dollar SD60 sand filter - 60gpm - 2.3sqft

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    May 2010
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    Tucson, AZ
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    Re: Filter Head Loss

    Calculating head loss is not very easy. Just get the smallest 2 speed pump you can find and you will not have a problem.

    Many members use the 1hp matrix power flo.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5

    Join Date
    Jun 2014
    Location
    Bellingham, WA
    Posts
    6

    Re: Filter Head Loss

    Thanks a lot, Jason! I'll give it a shot.
    18,000 gal above ground vinyl
    Pentair Sand Dollar SD60 sand filter - 60gpm - 2.3sqft

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