Polysheen Blue is highly concentrated to clear cloudy water fast and restore water to sparkling blue. You only need 1 ounce per 5,000 gallons. It binds together small suspended particles so they can be easily removed by your filter. No diluting needed. Recommended for weekly use and when pool water clouds from suspended debris. In SoftSwim® treated pools, use SoftSwim Filter Cleaner prior to application of Polysheen Blue.