Swimming Pool Stains: What You Should Know

Stains on swimming pool surfaces can be visually unappealing and costly if you don’t take immediate action. Brushing can often remove recent stains if you recognize them early enough. If you leave pool stains neglected it can ultimately result in the need to drain the pool to apply an acid wash.

What are pool stains?

Pool stains are the result of metal ions in pool water. If your pool is acquiring stains, your pool water contains metals, such as copper, iron or manganese. Pool stains can also appear from a corrosive pool water condition that dissolves metal pool components.

My pool stain is blue, green, red, brown, or black.

If your pool stain is blue or green, is it likely caused by copper or iron corrosion, or from the pool water supply. If your pool stain is red or brown, it is likely caused by iron or manganese corrosion, or from the pool water supply. Black pool stains are caused by manganese in the pool water supply.

I have a pool stain; now what?

After you notice a pool stain you should first determine what caused the stain to appear. Use a pool stain test kit and follow the recommended directions in the kit to treat the stain. You’ll use a pool stain remover and/or a metal control product to treat the stain. You many need to use a metal control product as part of your regular pool maintenance program to prevent more stains from occurring. Note: Follow the instructions on the label carefully when using a metal control product or pool stain remover.

Metals can also be present in your pool water if you have an improper pH level. If you pool’s pH levels are off-balance, adjust them to be within the range of 7.2-7.6.

Remember to treat pool stains as soon as you notice them. The longer you wait, the more difficult it will be to remove them.

Posted: Thursday, April 26th, 2012 @ 1:23 pm
Categories: How Tos, Pool Chemicals.
Tags: , .
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