Identifying and Eliminating Stains in Your Pool

Stains can be one of the most irritating and difficult aspects of maintaining a pool. With winter here, stains are more prone to settling in your pool because you are not constantly using and cleaning it. We have created a quick guide to help you identify and begin pool stain removal!

Stains tend to fall into two main categories - organic and metal or rust-based. The best way to distinguish the type of stain is by its color.

Organic Stains:
Green and brown stains: stains from leaves or other plant matter
Red and blue stains: stains from brightly colored berries
Metal or rust based stains:
Blue, green and black stains: if there is no evidence of organic matter, it is most likely a potential copper stain
Green, brown and red stains: potential iron stain
Brown, black and purple stains: potential manganese stain

Once you have an idea of what type of stain it is, there are several solutions you can try before calling in a professional.

Suspected Organic Stain
If you think you are messing with an organic stain, try applying a small amount of chlorine directly on the spot. If it is organic, the stain will lift easily.

If this organic stain test works and you need to wipe more organic stains from your pool, it's best to super chlorinate the water and brush the stains away. Triple shock the pool by adding 3 pounds of calcium hypochlorite pool shock for every 10,000 gallons of water. Once it has been shocked, brush all of the stains thoroughly and let the pool circulate for at least eight hours. Keep brushing the stains keep the chlorine level high until the stains are gone.

Suspected Metal Stain
If you think you are messing with a metal stain, ascorbic acid is the way to go. Try applying a crushed vitamin C tablet to the stain and see if it is removed or lightens.

If this test works, you will most likely need to seek professional help. Bring a water sample into our Thompson Pool and Patio location in Norman, OK so that we can determine what kinds and levels of metals are staining your pool. After that, we will be able to help you find the right chemicals and processes to remove the stains.

Stain Prevention
In order to prevent stains from plaguing your pool in the future, follow these tips:
Make sure that you have the correct level of chlorine or another form of sanitizer, in the pool. This will prevent organic stains from forming.
Make sure that your pH and alkalinity are balanced so that the chlorine will work properly.
Regularly vacuum your pool and skim the surface of the water to prevent organic matter from settling on the bottom.
Test your water regularly for the presence of metals and take action before the stains form.

We hope this advice will help you keep your pool clean and stain-free this winter season! For more tips and tricks, stay tuned for our next blog or give us a call at (405) 364-1912.