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Thread: New vinyl liner installed today, what first?

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    Join Date
    Jul 2012
    Forest, VA

    New vinyl liner installed today, what first?

    So I just had a new liner put in today and currently filling it up with the hose. I assume the cya will be zero. I know that I should have around 35-45 ppm to protect my FC. I have some trichlor tablets, and 3 one lb bags of dichlor shock. Could I just use my tablets and shock to bring my cya level up, then change over to Clorox,or just buy some stabilizer? Thanks in advance for replies.
    12,000 gal Octagon vinyl in-ground pool. Hayward S220 sand filter 3/4 hp pump, heat pump heater

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: New vinyl liner installed today, what first?

    I would add at least 20ppm of CYA and then you could use the other products to continue to bring the CYA up. Make sure you watch the pH though.

    PoolMath at the bottom will tell you how much CYA the tablets and dichlor add.
    Jason, TFP Moderator
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