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Acid Wash to Remove Stains & Algae Buildup

An Acid wash can give new life to a tired old plaster, that has algae stains, copper stains, calcium deposits or other discoloration caused by scaling or Algae might be removed by brushing, but most Severe and Set -in stains will require an acid wash


Pool Acid Wash before and after Picture


How does a Acid Wash Work?

This involves draining the pool and physically cleaning the plaster with a solution of muriatic acid and water is applied to the pool and the sides scrubbed by hand. The Acid mixture takes a small layer of plaster off, along with some of the stains that are attached and imbedded in the plaster. This will brighten up the plaster and hopefully remove most of the stains. Result will vary from pool to pool.


Does Your Pool Need To Be Acid Washed?

There are some pools that will have stains or discoloured surfaces that develop over time. For instance, magnesium or copper stains can turn plaster from white to blue. A black plaster pool may begin to look gray from calcium deposits. Sometimes these stains can’t be removed with scrubbing alone, and need to be acid washed to remove them.


Another sign that your pool needs an acid wash is the quick growth of algae after scrubbing it. Algae spores can burrow deep inside the porous plaster and continue to bloom, which the acid-wash should completely eliminate.


How Often Must You Acid Wash Your Pool?

Your pool generally only needs an acid-washing every five to seven years if you regularly treat and maintain the water in it. Acid-washing your pool more often can damage the plaster coating inside the pool because the acid strips away a small layer of it each time you do it.

Whether your pool is full of green algae, or you just want a clean, fresh-looking pool, acid washing your swimming pool can certainly help.

While you can perform this process yourself, it’s best to leave it to a professional service to avoid damaging the plaster surface of your pool. So don’t delay, Click Here to find out more information or to ask us a question or call now at 061 506 8721 for a FREE quote.



Acid Wash Results