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I recently posted with a black algae problem and wondered if I should blow up the pool. I followed the advice on this board and have been running my TC levels around 15 to 18 with CYA levels around 45 for the last 4 to 5 days.. A lot of the spots appear to have disappeared. However, all the...

I spent all spring on my mother in laws house and really neglected my pool. I think I was overtaken by black algae. There are hundreds of pencil erasure size to nickle dime size spots on the bottom of the pool, not on the sides. My CYA was nonexistent and is now up to 30. My pool is 14x30...

My dad has black algae in his pool and keeps throwing shock at it which doesn't do a thing. I've been educating myself on this board and use the BBB method on my pool and things are great. I keep telling him something is wrong; algae won't survive if the water chemicals are right. I read to...