Swimming Pool Acid Washing, Pool Draining and Green To Clean

Pro Tip: If you can’t see the bottom of the pool then a draining your pool is necessary. We can clean green pools with filtering, chemicals, and hours of labor but if the pools bottom is no longer visible the cost of labor and chemicals usually surpasses that of draining the pool.

If the pool has recently turned green, then a chlorine wash usually bleaches out the recent algae growth. However, If the pool has been sitting untreated or neglected for an extended period causing black algae growth to develop deep into the plaster, then an acid wash is necessary to get the clean the walls and remove the stains left by the algae.

Pool plaster can become discolored and stained over time as a result of mineral build up in the water due to water evaporation leaving behind all the minerals and dissolved solids. By removing the mineral stains, dirt stains, iron stains, chlorine stains and calcium build up with an acid wash we can make your pool look new again.

We start by draining your pool completely and removing any debris and do a chlorine wash to kill any algae that’s present. We then mix a 50/50 solution of water and muriatic acid and start pouring across the walls in sections beginning at the top. We leave this acid solution on the walls for 30 seconds or less and scrub the plaster with a brush. We then repeat this process two or more times until the stains are removed and we achieve the desired plaster color. To renew the plaster on heavily stained plaster sometimes a stronger acid solution is required. Typically an acid wash can be done multiple times over the lifetime of the plaster since an acid wash only removes a tiny amount of plaster when done.

For more detailed information on acid washing you can read this article: http://www.wikihow.com/Acid-Wash-a-Swimming-Pool