Black algae?

maxsrents

LifeTime Supporter
Apr 2, 2007
91
NJ
#1
We noticed thin black streaks on the sides and bottom of the pool. At first I thought it was the vacuum leaving marks behind. I'm not so sure of that anymore. I scrubbed some of the streaks with a wire brush and then rubbed a chlorine puck on each but they are still there. Does anyone have pictures of black algae? And solutions for ridding it. Thanks.
 
G

Guest

#2
Black algae is usually in the form of circular patches that start small (about the size of a coin) and get bigger with time. It takes a long time of too low a chlorine for it to start and is really the sign of pool pool maintenance over a perioud of weeks or months.