Green Algae Spots In Pool

Yellow and black algae will require a heavy brushing of pool walls and floor while green algae may only need a light brushing.

Green algae spots in pool.

The most common and easiest algae problem to kill is chlorophyta which gets its color from chlorophyll. It appears as dark black spots on the walls and floor of the pool and is slippery to the touch. First signs of it appear in small clusters on pool steps or lurking in corners. 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.

The black or blue green spots and clumps have raised heads and are attached to the pool s surface. Brushing will remove green algae but it won t. A few other ways to recognize black algae in your pool. They don t float freely in the water.

Green algae chlorophyta is a slimy substance that can be found on pool and spa surfaces. Poor filtration and lack of proper sanitization boost green algae growth. Black algae is a thread like growth that develops on rough surfaces in swimming pools. 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. This algae typically brushes away from pool surfaces easily but it quickly returns to nearby areas. Let the chlorine work overnight then test the ph levels of the pool in the morning to see if the ph is back to normal. It s at this stage that you should start to attack it green algae can grow quickly in 24 hours or less.

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. It establishes itself in areas where the pool surface is rough and it can really grab hold. This type of algae forms in a layered structure with the outermost layer protecting the lower layers. In prevention and treatment water chemistry is one of the most important steps to getting and keeping your pool algae free.

Brush all the surfaces inside your pool.