To treat black algae you will need to add an algaecide to your pool water. These are specifically designed to kill and prevent algae.
It is called black algae. Your pool supply company can provide the proper chemicals to treat it.
If it is genuine 'black algae' it is very difficult to remove without emptying the pool and gouging the black algae out of the pool surface. Other algae can be removed by shocking the pool, filtering continuously and brushing walls while maintaining a good sanitizer level.
When black algae appear in a swimming pool, it can look like a black discoloration or black spots on the sides or the bottom of the pool. This occurs when there is not enough chlorine in the pool, so treatment is necessary to get rid of this algae.
Brush vigorusly with a S. S. wire pool brush and treat with granular black algaekill. Treat frequently because it is very hard to kill this type.
Black Algae is the toughest of all to get rid of The best thing to do wit it is scrub it so that the waxy surface of it is thoughtfully damaged then shock the pool and hit it with a strong algaecide. A pool shop will be able to recommend the right product to do this.
I wouldn't!
go buy an algecide specificly meant for black algae from a pool/spa store.
You are limited to using liquid black algae treatments. k
get it out by hand your self
Black algae is the hardest to get rid of However be very carefull when it comes to emtying your pool especialy after rain as the ground water around your pool could forse it to start floating. which would ruin your pool altogether. Let me tell you this - in 2 weeks you could not get that much black algae. It took you months of neglect to harvest this crop of algae. I think you pool plaster could be no worse than as if you left the pool dry for the entire summer. If th estatement above thinks that emptying the pool during rainy weather is going to be bad for your pool ( and it will) then what you have spurned here is just as serious. Take some lessons on how to maintain a pool and look for a pool contractor who can remove all the plaster in your pool and start over again. Black algae is not your only problem. As an inexperienced person with a pool you can not see the problems that have developed along with the black algae. Tsk, tsk, tsk, tsk. Shame on you.
That is probably black algae. You need to go to a pool store and have them advise the proper chemical and use of that chemical for your pool. It may take a granular product for white plaster pools. Color tinted pools are another matter and you should use a liquid black algae treatment. And if you have a vinyl liner pool I just do not see how in the world you could get black algae. Black algae comes from not maintaining proper chlorine levels and adjusting the pH.
Probably not. Since "Black algae" has a crusty layer over it you will need to use something abrasive to break open the spores. Get a product that says "for black algae" We usually increase the chlorine levels too (if no one is using the pool)