Found under ladder treads behind pool lights and inside pool filter.
Yellow stains in swimming pools.
Yellow discolorations typically point to algae growth or iron deposits.
Leaves berries bugs suntan oil or even your water loving dog can all contribute to staining.
Bright yellow to dark yellow mustard color.
Swimming pools with water sourced from a well are prone to developing stains due to the presence of heavy metal compounds like iron copper silver and manganese.
Your first clue to diagnosing a pool stain is to check out it s color.
What causes rust in swimming pools.
There are a number of things that can cause rust spots and stains in a pool.
I show examples in a pool of yellow algae and some stains on the pool plaster that looks like yellow algae.
Metals are certainly not the only cause of stains in a plaster surfaced swimming 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.
Clinging hiding blooms not free floating.
Here s a pool stain chart as a guide for metal stain identification in pools.
If you don t clean your pool frequently rust can flourish because the items sit in one place and begin to rust.
May prefer shady spots of your pool.
Several conditions can lead to stains or scale in your swimming pool such as acidic water alkaline water or metal objects left in the pool.
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.
If a yellow or reddish color occurs it is an indication that the stain is copper.
The steps are a common culprit but any other metal items can blemish the surface as well.
Floats swim gear swimming pool pumps motors filters automatic pool cleaners pool.
Brushes off the wall fairly easily.
Identifying yellow algae in a swimming pool.
Where does yellow algae come from.
The appearance of yellow spots around the stairs of your swimming pool can indicate that something is happening with the chemistry of the pool water.