Iron is the most common type of metal/mineral staining in pools. So odds are good you’ll run into brown rust stains in your pool. In this how-to, we show you how to remove them quickly and how to...

Blue-green stains on your pool surface are a clear sign of a copper problem. Maybe you’ve been using copper algicide or have a pool heater. Either way, we’ll show you the fast and easy way to remov...

Discovering dark purple or black stains in your pristine pool can be discouraging, but you do not need to drain your water to fix it. These unsightly marks are typically caused by oxidized manganes...

Over time pools develop stains. At a certain point you may consider acid washing your pool to freshen up your surface. Traditional acid washing is difficult, expensive, and can damage the surface o...