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Thread: Vinyl liner pool CA and TA levels

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    divepool's Avatar
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    Vinyl liner pool CA and TA levels

    I have a SW pool 56000 gal (no typo) My FC 3, CC 0, PH 7.1, Calcium 90, 240 Alkalinity, CYA 0. salt at 3300ppm, Pool is crystal clear no problems. Trying to lower TA and maintain proper PH TA was at 300 three days ago, is Calcium ok or do I need to raise to 200 and I will be adding stabilizer to get 70/80ppm. Do I need to do anything else?

    Had a leak, replaced liner and new water.

    Thanks
    Rich
    22x52 IG 56K gal 3.6' to 11.6' deep, TruTile w/Vinyl Liner IG pool w/ 12" wide safety ledge
    StaRite System 3 Cartridge filter 450sqft S8M450, Pentair IntelliFlo VF pump 3.2KW
    Hydronic in floor heat & StaRite SR400HD, Pro Logic PS16 w/2 40K Turbo cells.
    4 Hayward Colorlogic lights, Dolphin DL3002 Robotic cleaner
    Saint Charles, IL

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    Mod Squad Bama Rambler's Avatar
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    Re: Vinyl liner pool CA and TA levels

    Don't worry about the calcium. Looks like you've got everything else covered. Aerate to raise pH and add acid to bring it and TA down, check; Add enough CYA to get to about 70 or so, check.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Vinyl liner pool CA and TA levels

    According to the recommended levels in Pool School, your CH can be 50-300...so you are fine at 90.

    Continue to lower TA and your pH will become more stable.

    Getting CYA up to 70-80 is perfect since your pool is salt water

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    divepool's Avatar
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    Re: Vinyl liner pool CA and TA levels

    Cool, thats what I thought but wanted advice.

    Thanks
    22x52 IG 56K gal 3.6' to 11.6' deep, TruTile w/Vinyl Liner IG pool w/ 12" wide safety ledge
    StaRite System 3 Cartridge filter 450sqft S8M450, Pentair IntelliFlo VF pump 3.2KW
    Hydronic in floor heat & StaRite SR400HD, Pro Logic PS16 w/2 40K Turbo cells.
    4 Hayward Colorlogic lights, Dolphin DL3002 Robotic cleaner
    Saint Charles, IL

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