I'm the owner of the web site that Richard linked to. I have been free of the mold for about a year. Using all of those pucks sent my CYA out of sight, so I drained and refilled, then switched to liquid chlorine only. Much better! I keep the FC at 5ppm and the pH on the high side (like 7.6). My wife swims almost every day and she now tests and chlorinates as needed every time. I think that the consistent control of FC is what keeps the mold away. But then that's the secret to keeping any pool at it's best, right?

Dick