Spa Purge attacks the root cause of most spa maintenance problems, the build-up of non-living organic waste contamination! Non-living organic contaminants like oils, lotions, cosmetics, hair products and sweat build-up in spa water produces scum lines, cloudiness, clogged filters, bad odors and foaming. These contaminants collect and build-up in your spa, circulation system, and filter. By purging the spa of this non-living organic build-up, the symptoms of contamination will be reduced or eliminated. Spa Purge contains SMARTZyme technology.