how does this grow in a balanced pool, I have these black dots showing up, not many but maybe 5 to 10? Doesn't chlorine kill this type of algae?
Thanks
Thanks
They were not there before they just started showing up, when I had a pool man taking care of it before TFP they were not there but the FC was at 16 and CYA was over 100. When I started to take over I added the swg..then since March 2014 they started showing up..They look like stone, but what made them show up...Thank youYou sure it is not just a black stone in the plaster, like all the blue ones?
Oh, did you say that they just showed up and were not there before?