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Thread: CH & Vinyl

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    Join Date
    May 2015
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    River Falls, WI
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    CH & Vinyl

    Is there any point to caring about CH values with vinyl liner? Can it be too high/low? I've been ignoring it based on the information I've read here, but I still occasionally test for it. Is it even necessary to test for it? My CH is 160. I really don't know if that means anything in the grand scheme of TFP.
    ~19k Gal, IG Vinyl, Hayward SP2607X10 1hp pump, Hayward S200 Sand Filter, built in 70s, has 8 deep end with diving board, 1 skimmer, 1 return, 1 low hole, Polaris booster pump PB4-60, old Polaris robot not sure model, Rheem P-M266A-EN-C 266,000 BTU heater, solar cover, Taylor K-2006 test kit, Speedstir

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    Azgirl71's Avatar
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    Apr 2015
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    Sierra Vista, Az
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    Re: CH & Vinyl

    Quote Originally Posted by wrems View Post
    Is there any point to caring about CH values with vinyl liner? Can it be too high/low? I've been ignoring it based on the information I've read here, but I still occasionally test for it. Is it even necessary to test for it? My CH is 160. I really don't know if that means anything in the grand scheme of TFP.
    With a vinyl pool CH is not a huge concern. Your CH is fine at 160.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Dec 2012
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    Re: CH & Vinyl

    I have a plaster pool and I measure my CH for two reasons. The first is if I do not have sufficient CH it can leech it from the plaster which will make it weaker and will deteriorate. This should not be an issue in a vinyl or fiberglass pool.

    The second reason is if the CH is too high it will start build up on the surface of the pool or scale. This is an issue for plaster and fiberglass pools. Unfortunately I do not know if a vinyl pool can or will scale. However since my tile is a smooth surface I can only assume that vinyl can also get CH scaling. I believe this would be a worry if it was over 400 or so.
    25,000 gallon in ground white plaster- 1 1/2 HP Pentair SuperFlo pump - 60 sqft FNS DE filter (with FiberClear), 1999 Sundance Optima 850 hot tub.
    Manassas Park, VA

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    Azgirl71's Avatar
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    Re: CH & Vinyl

    A vinyl pool can scale if CH is very high. My CH is 550 and I do not get scaling on my pool. Unfortunately I do not have water source to lower my CH available.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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