The most common blemish however is usually fading caused by sun damage and tears caused by equipment or debris in the pool.
Yellow stains in vinyl pool.
Mineral and metal stains.
Sometimes it can be fairly easy to get rid of stains but other times those hard to remove spots can take a bit more than a simple scrub.
Calcium or sodium salts can leave whitish deposits on your pool liner.
Unlike algae iron deposits resist scrubbing and take a lot of elbow grease to remove.
Pool steps can leave stains and rust on the finish and age can take a toll on the finish.
Iron pool staining can be brown red or a yellow orange color.
Iron can be introduced into a pool by well water or pipe corrosion somewhere in the pool system.
For stains on a horizontal surface you can test the surface for mineral staining by using a small amount of acid on the stain.
Vinyl is another pool finish that causes trouble.
Calcium or sodium salts typically leave a white deposits.
Organic pool stains come from dead algae small animals or organic debris.
When there is too much of a mineral present in the water it can begin to stain the pool.
Mix in 1 4 bleach and 1 4 white vinegar in a spray bottle and fill the rest of the spray bottle up with hot water.
Pool mate metal out is an excellent general purpose sequestrant that helps protect plumbing and pool walls from rust stain and scale.
Step 2 spray the mixture onto the stain and let it sit on the stain for about one minute.
Too much copper usually results in blue green staining while iron results in brown red or yellow staining.
How to identify vinyl stains.
Your first clue to diagnosing a pool stain is to check out it s color.
Calcium and salts can result in white deposits on the liner.
Shades of yellow can be a sign of excessive iron.
Shake the bottle well to mix in all of the liquids.
It should be used for pool openings and closings and throughout the season.
For best results add 1 quart per 10 000 gallons on a weekly basis and you will never have metal stains in your pool.
Pool stains on the wall or floor of a swimming pool can be caused by metals in the pool water or by an organic material left in the pool.
Blue green stains are usually from too much copper in the water.
The most common pool stains are blue green and are usually due to too much copper in the water.