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Thread: When to replace the liner?

  1. Back To Top    #1

    Join Date
    Jul 2015
    Location
    Oxford, MI
    Posts
    43

    When to replace the liner?

    We figured out that our pool is probably about 14 years old. We have to assume the liner is original. There are no leaks or tears. However, there is some severe discoloration on the bottom of the pool. In one corner it looks like a plume with no pattern (and it feels different on your feet) where we assume they poured in any chemicals which then made their way over to the bottom drain. The rest of the bottom is just really faded. The pattern should be the same as the walls and it is definitely not.

    When should I think about replacing the liner? If it hold water, do I just leave it be? I don't want to spend money for just the cosmetic - the sparkling clear water more than makes up for that part.
    In-Ground pool: 10,000 gallon / vinyl liner /
    Hayward Vari-Flo XL sand filter / Hayward H-series heater
    TF-100 test kit

  2. Back To Top    #2

    Join Date
    Jul 2012
    Location
    Southeastern IL
    Posts
    21

    Re: When to replace the liner?

    I replaced my original liner after 18 years, it was faded to a light blue but until the last year it had never had a leak. The last year the cleaner caused a tear that I patched, but the liner was so brittle I knew it wouldn't last much longer and I replaced it at the start of the next season. I plan on doing the same with the current liner, as long as it doesn't leak I won't replace it.
    18x36 IG Vinyl, ~25K, TF-100, Jandy 1HP 2 Speed Pump, Jandy AquaPure 1400 SWG,
    Hayward DE 3600 Filter, Pentair MasterTemp 200 NG Heater, DIY Install in 1990

  3. Back To Top    #3

    Join Date
    Jul 2015
    Location
    Oxford, MI
    Posts
    43

    Re: When to replace the liner?

    How did you know it was brittle?
    In-Ground pool: 10,000 gallon / vinyl liner /
    Hayward Vari-Flo XL sand filter / Hayward H-series heater
    TF-100 test kit

  4. Back To Top    #4

    Join Date
    Jul 2012
    Location
    Southeastern IL
    Posts
    21

    Re: When to replace the liner?

    The tear was more of a flap that I was able to feel as I was patching the liner. Instead of being flexible it was stiff. I'm not sure without it having torn I would have been able to tell. I think the real sign was the liner getting a tear in it after that many years.
    18x36 IG Vinyl, ~25K, TF-100, Jandy 1HP 2 Speed Pump, Jandy AquaPure 1400 SWG,
    Hayward DE 3600 Filter, Pentair MasterTemp 200 NG Heater, DIY Install in 1990

  5. Back To Top    #5

    Join Date
    Aug 2014
    Location
    Northern IL
    Posts
    4,615

    Re: When to replace the liner?

    If you have any wall to floor or wall to wall areas where the liner isn't tight to the wall, you could kinda poke at it a bit with your hand/foot to test if it's flexible at all.

  6. Back To Top    #6
    ernie01jt's Avatar
    Join Date
    Mar 2015
    Location
    Smithton IL
    Posts
    178

    Re: When to replace the liner?

    Last season during the initial brushing following the winter safety cover removal we had a 2" crack/hole near the steps. I know it happened during the brushing because if it was there before the water level would have been down to that hole. We had several more leaks last year, to the point that I shut it down and closed it one month early. Our seven year old liner's sides and bottom were faded to almost white below the water line/level. It was a light gray marbled color to start, I'm almost positive the company who was treating our pool, "overdosed" our water with chemicals. The reason I say this is since the initial fill of the new liner this year I've had almost no chemicals added except salt,stabilizer to boost my CYA, and bleach to bring my FC up until my salt water generator could maintain it.
    18' x 38' 20,500 gallon vinyl IGP, 3.5 - 7' depth, Pentair FNS Plus DE filter,
    2hp Whisperflo high performance pump, 1.1hp boost-rite pump for the cleaner,
    250k BTU MasterTemp heater, LetroLegend pool cleaner, Hayward TurboCell GLX-CELL-15 chlorine generator
    Speedstir, K-1776, TF-100

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