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pool stains

Dealing with Stains on Your Swimming Pool

06,Feb 2019
Your pool is a place where you go to relax, entertain friends, and have fun. Stains on your swimming pool can put a damper on your fun and could be embarrassing for your guests to see. The hard-to-remove pool stain may require more than just brushing to remove. To get your pool sparkling clean, you may need to use powerful chemicals and other methods to treat your pool stains and prevent them in the future.

Types of Pool Stains

 

Before you can begin removing these stains, you need first to determine what is causing the stain to ensure you choose the most effective treatment for removing it. Swimming pool stains can be caused by factors such as:

Rust

This can come through the floor, walls, or around the fittings of your swimming pool. Rusts stains are usually in an isolated spot and are created by metal objects that have fallen into the pool, or it can be coming from inside of the pool. For example, on a concrete pool, a rebar tie wire that is too close to the surface or water that has gotten into a crack in the pool and reached the rebar steel can cause rust stains.

Organic Materials

Material like leaves, algae, dirt, worms, or oils can get into the pool water and break down, causing stains to occur. Greenish-brown stains usually indicate a stain caused by organic material sitting at the bottom of the pool. Other materials like berries can leave blue or red stains in your pool.

Metals
These can come out a solution and get into the pool water, causing reddish-brown, dark-colored, or rust-like stains. Some common metal stains and their colors include:
  • Copper- green/blue
  • Iron- rusty red to brown or green-brown
  • Manganese- brownish-black or purple
Minerals

This type of stain is made up of scale film that is mixed with dirt and oils that have been deposited on your pool’s surfaces. This type of stain will appear as dull discoloration. A mineral stain can usually be found as a waterline stain appearing as scaly white deposits on the tile located at the mid-tile water level. Mineral stains can also deposit a dirty, filmy stain over other pool surfaces.

Removing the Different Types of Pool Stains

Each pool stain has a removal method that works best for concrete and vinyl pools. These methods include:

Organic Stains

For concrete pools, this type of stain can be bleached out using chlorine granules applied directly to the stained area. These granules can also be used for vinyl pools but should be dissolved before application. You can usually shock your pool and thoroughly brush it to remove most organic stains.

If the stain is at the waterline of the pool due to organic material floating at the top, try an enzyme-based cleaner to help break down the organic compounds and oils for a more natural stain removal method.

Metallic Pool Stains

The first step in controlling metallic stains in your pool is to use a stain and scale chemical to lockup the metals in your pool, like Metal Free. The next step is to use an ascorbic acid-based pool stain remover made from granular Vitamin C. Be sure to spot test first using finely ground Vitamin C from your medicine cabinet to ensure this would work on your stain.

If this method doesn’t work, you can use a more powerful stain remover with active ingredients such as sodium sulfate and sulfamic acid to remove rust, stains, and grime in your pool water.

Prevent Pool Stains with These Tips

One of the best ways to avoid organic stains is keeping your pool clean and free of debris. You may consider trimming the bushes or trees that are near your pool or even investing in an automatic pool cleaner.

Metallic stains can be prevented by keeping your water balanced by monitoring your water through regular water chemical testing. You can also keep metals and minerals at by using a stain and scale chemical.

For recommendations on what pool stain removers to use, contact Swimming Pool Discounters today to learn more!