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Thread: How many gallons of beach for SLAM, 45k pool?

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    Join Date
    May 2016
    Nesbit, MS

    How many gallons of beach for SLAM, 45k pool?

    Wondering if anyone may estimate the number of gallons of regular (8-9% sodium hypochlorite) bleach I should have on hand to SLAM A 45,000 gallon in ground? TC is 3, FC is .5.
    45,000 gallon in-ground large T, vinyl liner, Jacuzzi 1.5 hp magnum pump, Hayward 24" 300lb sand filter.

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    Mod Squad Texas Splash's Avatar
    Join Date
    Jun 2014
    South-Central Texas, Marion/San Antonio

    Re: How many gallons of beach for SLAM, 45k pool?

    Hello and welcome to TFP! To be honest, it's impossible to answer your question at the moment since we have no idea how long a SLAM will take to clear your water. We also do not know what your current CYA reading is which drives how high your FC level should be. So if you could provide us with a good CYA reading from your TF-100 or Taylor K-2006, we can give you some ideas. Of, you can use the Poolmath Calculator (link below) which is what we use anyways. Depending upon the condition of your water, a SLAM can easily last anywhere from 7-14 days. "Swamps" can last a bit longer.

    Nice to have you with us.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: How many gallons of beach for SLAM, 45k pool?

    As a starting point..........using gallons of 8.25% bleach will raise your FC by 1.9.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: How many gallons of beach for SLAM, 45k pool?

    Welcome to TFP

    What test kit do you have, If you can post up your numbers it would help us give you some recommendations
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

  5. Back To Top    #5

    Join Date
    Aug 2010
    Dallas, TX

    Re: How many gallons of beach for SLAM, 45k pool?

    A whole bunch, look at my sig line and you'll see how I know.

    One thing, SLAM time is variable, so there is no way to put a number to how much bleach it will take.

    We need a full set of test numbers, especially CYA.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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