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Thread: Does liquid bleach fade vinyl liners?

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    Join Date
    Jun 2007

    Does liquid bleach fade vinyl liners?

    Post moved from the Suggestion Box to this forum. JohnT

    I have converted from using Smart Shock to liquid chlorine-6%. My pool store told me the liquid bleach will fade my vinyl liner and make it slimy. The reason for the switch is my cyanuric acid level is still high. It has only dropped from 150 to 145 after I have emptied the water by 1/3 twice. I am open to any advise. Thanks
    20x40 IG plaster w/spa, Polaris Autoclear SWG

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana
    It can, as can any form of chlorine. The powdered stuff is worse because it will settle to the bottom if it isn't dissolved completely. Your pool store probably sells double strength bleach, but it is labelled liquid shock.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    When added carefully, typically into the skimmer slowly, bleach will no more fade your liner than any other form of chlorine. Once it is mixed into the water chlorine is chlorine is chlorine, it doesn't mater where it came from. Over the very long term chlorine will fade the liner, just as the "shock" product they sell will, but that fading will probably only become noticable around the same time the liner needs to be replaced.

    If you spill full strength bleach directly on the liner you might well have fading or other degredation. This is actually more likely with powdered "shock", because it tends to settle on the bototm.

    The only thing that is going to make a liner slimey is failing to add enough chlorine, which is what tends to happen when people follow the directions pool stores tend to give.

    The pool store wants your money. If you by bleach at the grocery store they won't get as much of your money. That tends to lead them to say silly things.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    NWMNMom's Avatar
    Join Date
    Apr 2007
    Waaay NW MN
    Chlorine is Chlorine. The pool store will try to imply that what they are selling is something different or special - its just another form (usually powdered, granuals, tablets or concentrated) of chlorine....and usually at a higher price, but not always. Shop wisely!
    18x33x52 Buttressfree Seaspray (Wilbar) AGP - 1.5hp Pentair Maxim w/22" Pentair Meteor Sand Filter, Aqua Rite SWG System, Biltmore Walk In Steps - 2/4x20 Solar Panel Setup - Doheny Jet Drive (RIP -Pool Rover Jr) - finally hard plumbed the whole darned thing -
    Beats Driving to the Lake!

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    Join Date
    Apr 2007
    Keeping your pool at 3ppm chlorine certainly won't do as much damage as sunlight does

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