Natural Chemistry StainFree Stain Free is an all-natural stain remover. It's like Vitamin C for your pool! Use with Natural Chemistry's METALfree for the ultimate stain-fighting combination! Stainfree is an ascorbic acid product, similar to everyday VitaminC. It is ideal for treating staining to vinyl pool liners and fiberglass pool surfaces. A safe and people friendly alternative to harsh chemicals typically used to treat stains.
The bonus is that Stainfree does not create any residual phosphates in your pool water, making it the perfect stain-fighter for use with Natural Chemistry's PHOSfree program!