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Thread: Sand In Pool

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    Join Date
    Jun 2016
    Location
    Jackson NJ
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    96

    Sand In Pool

    I put in a new sand filter about a month ago and whenever we run the filter, notice sand (looks like beach sand) and some debris on bottom of pool, particularly around the returns. The Polaris picks it up and it remains clean until the next time we run the filter and the sand returns to the bottom again.

    I called out the company that installed the filter, and after poking around they swore that there is no way it can be the filter sand returning into the pool. They said "you must have a busted pipe under the concrete or something."

    Hoping someone on this forum would be able to help. Just FYI here are my chemistry numbers

    FC 4
    CC 0.5
    pH 7.5
    TA 120
    CYA 30
    CH 150
    Vinyl IG 18x43 25,000 gallon
    Hayward Pro s244T 300 lb Sand (with occasional addition of clarifier)
    1.5 HP pump; Polaris 380 with booster pump; Hayward H400 gas heater
    TF-100 with SpeedSTIR

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    triptyx's Avatar
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    Apr 2016
    Location
    Tucson, AZ
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    1,194

    Re: Sand In Pool

    Have you been able to pick up any appreciable amount of sand where you might be able to show it to us?
    8,500gal plaster in-ground with attached spa, two floor drains, one skimmer. Chlorine, City Water.
    Pentair WhisperFlo 1hp Pump, MagnaTek Midcentury EPlus motor, Pentair CleanNClear 200SF Cartridge filter, Purex Triton MiniMax 250 Gas Heater, Pentair SunLite, AutoFill.
    Kreepy Krauly Cruiser, TF-100 with SpeedStir. :D

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    Join Date
    Jun 2016
    Location
    Jackson NJ
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    Re: Sand In Pool

    I pick up alot of sand every single day. But I do not have a pic and I am not home.
    Vinyl IG 18x43 25,000 gallon
    Hayward Pro s244T 300 lb Sand (with occasional addition of clarifier)
    1.5 HP pump; Polaris 380 with booster pump; Hayward H400 gas heater
    TF-100 with SpeedSTIR

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    Kiss4aFrog's Avatar
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    May 2013
    Location
    Hudson, WI
    Posts
    2,602

    Re: Sand In Pool

    Try running the pump in "Bypass" mode. If you don't see sand by the returns after running it in Bypass, it's pretty likely coming from the filter. Being in bypass mode takes the filter out of the equation and if there is a break in a pipe that's sucking something in you're going to still see it showing up in the pool in that bypass mode.
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
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  5. Back To Top    #5

    Join Date
    Jun 2016
    Location
    Jackson NJ
    Posts
    96

    Re: Sand In Pool

    That is a good idea. I assume bypass mode is the same as recirculate...
    Vinyl IG 18x43 25,000 gallon
    Hayward Pro s244T 300 lb Sand (with occasional addition of clarifier)
    1.5 HP pump; Polaris 380 with booster pump; Hayward H400 gas heater
    TF-100 with SpeedSTIR

  6. Back To Top    #6

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    Kiss4aFrog's Avatar
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    May 2013
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    Hudson, WI
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    Re: Sand In Pool

    Sorry, yup, Recirculate.
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

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