I have what I believe are black algae spots on the bottom of my pool.
It is 15,000 gal., in ground plaster.
I found a prescription on the internet that calls for putting 8 gal of liquid chlorine in it followed by 2 gal of ammonia hydroxide.
The claim is that this is the only way to completely get rid of it. It will supposedly burn the algae out, roots and all.
1. It does not specify the size of the pool. I wonder if mine would require less.
2. It sounds dangerous to me. We're constantly told not to mix ammonia and chlorine, due to the fumes given off.
Has anyone ever heard of this? Will it work? Is it safe?
I just signed up to ask this question, do not have the type test kit required. I will purchase one and post the results, If this will help