They can occur do to bleaching of the vinyl liner or incorrect ph or chlorine levels. Acids can remove rust stains from vinyl but could damage the vinyl.
Treat your pool liner for your type of stain.
How to get rust stains out of vinyl pool liner. If that doesn t work try a stain remover. Wipe away the excess mixture with paper towels until the stain is gone and the area of the vinyl is completely dry. Vinyl pools need to use a more delicate method such as the stain eraser mentioned above or jack s magic products.
Jack s magic the blue stuff the step stuff and the iron stuff all work very well for overall rust staining or for localized rust spots on a vinyl pool. Most rust stains in swimming pools are caused from metal objects that have fallen into the pool such as hair pins nails toys or other metal items. In order to treat your.
Where elbow grease fails to remove pool stains the next step is to chemically treat the stain specifically. But ideally you need 3 things. A stain remover to pull the stains off of the surface a sequestering agent to hold those metals in the water so they don t fall back onto the surface and a filter aid to help pull them out of the water for good.
Obtain a small drawstring bag such as those used to put delicates in the washing machine or an old sock and fill it with oxalic acid a rust removing substance that should be available from a hardware store or pool shop. I don t think you need to drain the pool. Mineral vinyl liner stains respond best to acid treatments.
Organic pool stains are treated by shocking the pool with a chlorine shock treatment. Rust stains in swimming pools the best way to remove rust stains in swimming pools is by using our rust stain treatment kit. However you cannot treat vinyl liners with acid wash so you may be out of luck.
Mineral pool stains are treated with acidic stain removers. If the stain is on your vinyl pool steps try jack s magic step stuff. Chemical pool stains or uv stains are more tricky to treat and are most likely un treatable.
Vinyl pool stains can be removed with acidic stain removal products like stain free or a stain remover or jack s magic blue stuff for vinyl liners.