Removing Black Algae From Pool Walls

The protective layer that forms on black algae makes the algae otherwise impervious to regular sanitizers so you must brush the algae to break through this layer so that chlorine and algaecides can kill the organism.

Removing black algae from pool walls.

Black algae generally penetrate porous pool surfaces like concrete and gunite. 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. Black algae have deep roots that work their way into.

Black algae are generally not an issue with smooth surfaced pools like fiberglass and vinyl. Black algae is a thread like growth that develops on rough surfaces in swimming pools. Once these surfaces are infested with black algae it will take time and persistence to eliminate it. During that 24 hour period while the chlorine level in the water is so high brush the surfaces at least two more times preferably three or four times to get any remaining black algae off the walls and floor of your pool.

The first time you cleaned the filter was to get any live bacteria out of the filter. Those pesky little spores stick to the cloth and hop off in the pool the first chance they get so be sure to use bleach to clean them. This guide provides a step by step procedure for eliminating black algae. This type of algae forms in a layered structure with the outermost layer protecting the lower layers.

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