Green Algae Spots In Pool

Poor filtration and lack of proper sanitization boost green algae growth.

Green algae spots in pool.

It can also be resistant to chlorine making it more difficult to remove. It appears as dark black spots on the walls and floor of the pool and is slippery to the touch. Mustard algae is a stubborn pool algae that results in dirt colored or yellowish brown spots clinging to the walls and floor of your pool. This algae typically brushes away from pool surfaces easily but it quickly returns to nearby areas.

Slimy green algae also attaches itself to your pool walls and floor. A few other ways to recognize black algae in your pool. The most common and easiest algae problem to kill is chlorophyta which gets its color from chlorophyll. Black algae is a thread like growth that develops on rough surfaces in swimming pools.

They don t float freely in the water. The black or blue green spots and clumps have raised heads and are attached to the pool s surface. It establishes itself in areas where the pool surface is rough and it can really grab hold. First signs of it appear in small clusters on pool steps or lurking in corners.

In prevention and treatment water chemistry is one of the most important steps to getting and keeping your pool algae free. Yellow and black algae will require a heavy brushing of pool walls and floor while green algae may only need a light brushing. Brushing will remove green algae but it won t. Green algae chlorophyta is a slimy substance that can be found on pool and spa surfaces.

Brush all the surfaces inside your pool. For yellow and black algae it is a long process and cannot be achieved in a day or two but for green algae you may solve the problem in a matter of hours. You need to test your chlorine and ph levels with a good test kit which are more accurate than test strips and bring your ph level to about 7 8 by adding sodium carbonate to increase it or sodium bisulfate will also need to make sure the chlorine is at least above 1 ppm. Green algae floats in the water making it cloudy and giving it a greenish tinge.

It s at this stage that you should start to attack it green algae can grow quickly in 24 hours or less.