A waterline ring occurs in a pool or spa when there is a high amount of non-living organic waste that has not been oxidized. A lot of this waste partially breaks down, and then sticks to form the unsightly waterline ring at the top surface of the pool or spa. The regular use of an enzyme maintenance product such as Pool Perfect, Spa Perfect, or Salt Water Magic Liquid will reduce this problem at your waterline by breaking down non-living organic waste in the pool before it has a chance to stick to the waterline. Incorporating a maintenance enzyme product into your routine will help prevent this unsightly waterline ring and reduce the scrubbing necessary to maintain the pool or spa.
For existing pool waterline rings, Pool First Aid can be used to speed up the removal process.