Muriatic Acid Wash Hard Surface Swimming Pool Cleaner AWC1035. Acid Wash Cleaner (Hydrochloric Acid or Muriatic Acid). Recommended for use as a pre-treatment before re-painting your pool. This powerful acid-based cleaner is designed to promote and help clean concrete, stone surfaces and old painted surfaces. The underwater acid wash works with a continuous feed of acid from a bottle above water. This tool removes any stains that a conventional acid wash can, with a . High active, heavy duty acid cleaner and descaler. Will remove mortar . Highly recommended for the cleaning and etching of concrete floors. Available in all . Mix equal parts hydrochloric acid -- also referred to as muriatic acid -- and water to spray the sides of the pool. Scrub the acid mixture into the plaster surface for about 30 seconds, using a brush. Wash away the acid with water to prevent it from permanently etching the plaster. 2 reviews of Arizona Acid Wash 'Never have I found such honesty in pool repair people! Craig sent me professional . Language English (2). English (2). Rating. Reviews on Pool acid wash in Gilbert, AZ - Arizona Acid Wash, Gino's Pool Service and Repair, A Klearly Kleaned Pool, E and E Pools, Del Sol Pool Service . Also called a drain & clean, an acid wash becomes necessary if the pool has turned into the 'black lagoon'. This may occur if the winterizing process is not done . [email protected] . SWIMMING POOL CONSTRUCTION PROJECTS. . Replacement of old pool pipework; Draining of pool , acid washing of interior .