About a month ago I posted some pictures on here thinking I had algae on my vinyl pool liner. Through some great help we discovered it is a metal stain as the stain is removed when placing a Vitamin C tablet on it. The stain covers roughly 40% of the pool liner on the floor (roughly 20ft by 40ft IGP). My question now is what will be the best way to remove this. I have looked into Natural Chemistry's Stain Free Ascorbic Acid treatment but I was wondering if I have some different options. Has anyone use Natural Chemistry's Stain Free before? Has anyone use a different method to treat for this?
I thought about crushing my bottle of Vitamin C tablets into a sock (cotten or nylon) and then attaching to a pole and rubbing the stains off. But where will the residue go, will it just move somewhere else once it settles and the stain will reappear? This is also labor intensive but might not be too bad over a few nights as the stain seemed to remove pretty quickly once I placed the tablet on it.
I believe the original source of the stain was from the pool company when they opened the pool for the season. They put in an algaecide. Is this necessary when opening a pool for the season? Should I ask them not to next season?