Found this site trying to find out how to beat black algae and I think now that I have switched to the BBB method 2 weeks ago, major progress has been made. So big thanks for that! Before switching I was using the HTH Dual Action 3" Tablets in an automatic chlorinator. No matter how hard I tried, I couldn't keep the pool looking nice. After running some tests with the 6 way test kit I grabbed at walmart, I found I had almost no CYA in the pool. So thats were my question lies. I have been using those tablets for the two years I have owned the house, and only bought them as thats what the PO recommended. I would have thought from what I read here the CYA would have been through the roof. So my question is "Where did all the CYA go?"
Thanks again for all the help again,
Mike
Thanks again for all the help again,
Mike