Works great on my fiberglass pool for iron stains. Pout it in and 24 hours later pool looks like new.
Natural Chemistry STAINFree is an all-natural stain remover that contains a blend of industrial strength citric acid. Quickly removes metal staining without adding unwanted phosphates to your pool water.
- Less expensive alternative to ascorbic acid
- Ideal for fiberglass pools
- Non-toxic and will not harm the environment
- Compatible with all sanitizers and pool surfaces
- Phosphate-Free formula
Free Shipping on All Orders of $50.00 or more
Been fighting a vinyl liner stain off and on all summer. Someone recommended this, and it works like a charm.