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Thread: New Vinyl Liner

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    New Vinyl Liner

    I have owned a 16000 gal indoor pool for the past 4 years. I just had a new vinyl liner installed and I am trying to get the water balanced. Over the past 1 1/2 weeks I have been adding Muratic acid and have gotten the TA down from around 230 to 110. However during this process the pH has never gotten any higher than 7.2. For aeration I have two return jets at the "step" which have bubblers built in and I have directed the other two return jets to the surface to create agitition. However it seems that with aeration I can get the pH to return to 7.2 but it doesn't seem to want to go any higher.

    I would like to have a slightly higher pH, is it time to start adding soda ash or borax? In looking over records from the past four years, the pool has been very stable at a TA of 120 and a pH of 7.2.
    16000 gal. Indoor AG Pool; Nautilus DE Filter; Vinyl Liner; Pentair IntelliFlo 3HP Pump set at 35 gal/min.

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    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: New Vinyl Liner

    Yes, go ahead and use borax, it won't raise the TA very much and a TA of 110 is fine.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner

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