Also green algae most commonly starts in corners or areas where automatic pool cleaners are unable to access.
Mustard algae stains in pool.
Green algae is the most common cause of algae stains in swimming pools.
Mustard algae has a powdery surface that looks like dirt or even pollen and is often mistaken for pool staining.
Although it s not dangerous usually overgrowth of mustard algae can house bacteria like e coli.
Mustard algae will require some heavy duty scrubbing since it s chlorine resistant so definitely have your pool brush ready.
Basically this is because green algae is one of the fastest growing algae types and will often turn your pool green or cloudy overnight.
It is most commonly found in warmer climates but mustard algae can grow in all pools.
You ll probably see it growing in areas that are typically shaded like the sides or bottom of your swimming pool.
Since it is chlorine resistant mustard algae can be hard to get rid of once it s in your pool.
Vacuum the pool to waste.
If you have mustard algae in your pool it might look like a stain pollen some sand or dirt.
Not only can it stain your swimming pool it can also live on all your pool equipment pool toys floats and togs.
In other words it makes your pool look dirty and clouds the water.
Mustard algae yellowish green or brown in color often attaches to pool walls and other items including pool equipment toys and even bathing suits.
You will want to make sure you have scrubbed the entire pool surface thoroughly including under steps and around gaskets and seals.