Brown Stains On Bottom Of Pool Liner

Stains that appear reddish brown or very dark are typically related to metals in your pool water.

Brown stains on bottom of pool liner.

Iron pool staining can be brown red or a yellow orange color. Calcium or sodium salts typically leave a white deposits. Place a vitamin c tablet ascorbic acid on the stain for a short time period. One of the most common causes of stain is the salt.

Adding salt to the salt water pool. The chemicals that are introduced into the swimming pool s filtration system are there to get rid of algae and other bacterial growths. The most common reason for algae to appear in a swimming pool is from improper ph and chlorine levels. Copper is from ionizers and corrosion of copper and brass pipes.

The iron depending on the severity provides with a yellow to brown stain in the pool. Calcium or sodium salts can leave whitish deposits on your pool liner. To identify the type of pool stain you re dealing with match it s color s to one of the descriptions below. The metals that commonly cause pool stains are iron manganese copper.

Organic pool stains come from dead algae small animals or organic debris. Green or green brown pool stains organic usually caused by decomposed leaves twigs algae or other plant life. If you see brown red yellow staining that could be do to too much iron. This will result in blue green teal black or dark purple stains.

Sometimes caused by decomposed bugs or critters. Vinyl pool liner fading can also be an issue worth mentioning. If the stain lightens from a small application of acid to the stain then it is a mineral type of stain. In this post we discuss identifying cleaning and preventing swimming pool stains from various sources.

What are these brown stains in my pool. Even the manganese can also give a quite dark brown or even a blackish stain. For stains on a horizontal surface you can test the surface for mineral staining by using a small amount of acid on the stain.