Natural Chemistry PurgeNatural Chemistry PurgePurge removes built up gunk and grime like oils, sunscreen, hair products, sweat and lotions from pool plumbing that can cause issues such as cloudy water, waterline rings, clogged filters and difficulty maintaining proper water balance. Purge Features: Cleans and removes buildup in pool plumbing systems Removes organic waste such as oils, lotions, sweat and other contaminants Reduces clogged filters, odors, foaming and clogged