If you see black spots growing in your pool, understand that it is a sign of the beginning of black algae (which are really blue-green algae that look black). Black algae are perhaps the hardest algae to get rid of because it has very deep roots that can grow into the side of plaster pools. They have outer protective layers that protect them from normal chlorine levels and sanitization process. They usually grow quickly in warm water on a sunny day. Regular pool cleaning often restricts the growth of algae species. Though black algae aren’t harmful, their presence can be a sign that other bacteria are present. Besides that black algae growth makes your pool look dirty. So, it’s important you must get rid of black algae with these treatment methods:
Method #1: Drain the pool and acid wash the plaster. After that pressure wash the pool, and pump out the water. Then bleach wash the pool, rinse again, and refill the pool with fresh water. Replace the filter media and any semi-porous items to avoid contaminating your cleaned pool with black algae traces.
Method #2: The key to getting rid of black algae is to brush the area hard, brush thorough to "break open" its protective slime layer in order to allow chemicals to penetrate the organism. Triple shock your pool by adding 3 pounds for every 10,000 gallons of water your pool holds. Make sure you add the shock at night and run your filter 24 hours a day until the black algae has been taken care of.
Method #3: Balance the pool chemistry to a low pH/high alkalinity condition, then brush the black algae with a steel bristled brush vigorously. After brushing the black spots, Triple Shock the pool as mentioned in the method 2.
Method #4: If your budget allows and your pool is full of black spots, you can go for replastering option. This is the most effective method to permanently get rid of black algae. Make sure you ask your pool cleaning to properly clean the pool tiles to remove the black algae spores completely. After getting your pool plastered, it’s your responsibility to properly sanitize pool floats, swim suits, brushes, nets, and cleaning equipment.
Black algae are more typically found in concrete or plaster finished pools because of their rough surfaces. Their protective slime layer makes it impervious to normal chlorine levels. They don’t have any effect on water clarity, but it makes your pool appear to look ugly. So, if your pool has started to get black spots, call your expert pool cleaning Cypress company today and get rid of them permanently.