How long after putting in black algae out can you go swimming?

Black algae is a type of cyanobacteria that can contaminate swimming pools. It is important to remove black algae as soon as possible, as it can cause skin infections and other health problems.

After black algae has been removed, you should wait at least 24 hours before swimming in the pool. This will allow the chlorine in the pool to kill any remaining bacteria and algae. You can also wait until the pool water is clear before swimming.