What is an acid wash?

An acid wash is a specific method used to clean pool surfaces, particularly when they have developed stains or mineral deposits that are difficult to remove through regular cleaning methods. By using diluted acid, typically muriatic acid, the wash effectively removes these stains from surfaces like plaster, tile, or concrete without causing significant damage if done correctly. It works by dissolving the buildup of minerals and organic materials, restoring the pool's clean appearance.

This cleaning technique is often employed when performance-diminishing stains affect water clarity and aesthetic appeal. Properly carried out, an acid wash can rejuvenate pool surfaces and prolong their longevity. The process requires safety precautions, as the acid can produce harmful fumes and can damage surrounding landscaping if not managed properly.

While the other options mention various cleaning and maintenance methods related to pools, they do not provide the specific context and application involving the direct use of diluted acid to remove stains, which is essential to understanding what an acid wash entails.