This little pads is fantastic for cleaning ceramic tiles, sinks, porcelain toilets, swimming pools, etc., without any chemicals. It almost magically removes:

Rust, calcium and lime buildup

Grey, green and brown water residue

Algae and chemical stains on pool tiles

Standing water stains in seasonal homes

Hard and well water residue

Gentle and easy to use, simply moisten the pad and rub gently. It's the pumice and "elbow grease" alternative. Septic tank safe.