Vinyl acid wash

[stan64572]

why not acid wash vinyl liner, i have seen many people say not to , but dont see any that says why not , what will it do, i have had great luck with mine

[davidw5251]

I'm unsure about using an acid wash. My concern is a vinyl lined pool with a tide mark - but ONLY at the skimmer end of the pool. I am not sure what this is - it's green, but ir does not respond to algicide treatment (and the pool water is clear and beautiful). Any thoughts on the cause AND a solution?

[stan64572]

you can try to remove it with acid, this is how i have cleaned my liner many times.. i put muretic acid full strenght on the stain,it will dissolve the stain instantly , i leave on for about ten seconds,then rinse off. i use acid this way to clean my filter baskets,steps,and liner. caution this acid produces a choking fume so be ready for the fumes. I have drained mine and stood in the middle of it and sprayed full strenght acid on the liner from a pump sprayer, small section at a time rinse off immediatly , liner looks brand new afterward and so far i cant see any damage whatsoever ,although i am sure it would damage the liner if left on to long and it soaked in. just a little something to try to get rid of the scum line, test a small spot first and see how it does.