What Causes Black Algae In Pools

Black algae are living growing organisms that unless taken care of quickly can overtake your pool and cause severe structural damage. Their roots extend into the pool plaster or tile grout and unless the roots are destroyed a new head will grow back in the same place. After an encounter with algae particularly black algae you might want to replace parts in your pool.

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How Do I Get Rid Of Black Algae In My Pool

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How To Kill Black Algae In Your Swimming Pool

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Find How To Kill Black Algae In Your Swimming Pool

If you have black algae in your pool you have black algae in your filter.

What causes black algae in pools.

Vacuum up debris and once the problem is under control replace the filter media because black algae likes to harbor inside of filter sand and cartridge material. This type of algae forms in a layered structure with the outermost layer protecting the lower layers. Black algae is a thread like growth that develops on rough surfaces in swimming pools. Black algae will appear as dark black or blue green spots usually the size of a pencil eraser tip up to the size of a quarter.

This algae may appear black in the pool but when you retrieve a sample and rub it on a piece of white paper you ll notice a greenish tinge. Pressure wash the surface. None are true algae but classes of bacteria that manufacture their own food by photosynthesis. It s an example of a cyanobacterium.

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. It s related to spirulina another type of blue green algae and to red algae which also grows in swimming pools. Remember black algae have deep roots that can penetrate the walls of your swimming pool. But the normal treatment for black algae.

If there s only a small amount of black algae in the pool you can probably get away with backwashing your pool filter for sand or de filters or rinsing the filter cartridge. If the algae problem is extensive use a filter cleaner rather than just plain water. Brush daily for a week with the proper brush for your pool paying special attention to algae affected areas. Focus on the spot where the algae first appeared and work outwards from there.

Black algae grows in localized areas such as along one wall in the deep end in a corner or around obstacles such as steps indicates an area of poor circulation and poor sanitization. It appears as dark black spots on the walls and floor of the pool and is slippery to the touch. Chlorine wash the surface. And it s hard to get rid of because its roots grow into cracks in the cement and don t like to let go.

Drain the pool acid wash the surface neutralize and pump out waste water. Black algae is the common name or term given to the dark blue green algae found growing on pool surfaces. Black algae leeches onto your pool liner anchoring it. Following a black algae hit scrub it down four times throughout the following day.

Black algae have deep roots that work their way into. Responsible pool owners brush their pools on a regular basis. This makes it difficult to get rid of and if there is extensive damage to your pool liner opt to get a replacement before next season.