This is my second season owning a pool. I never liked the pool guy we had last year, so I decided to dive on the TFP method. I've got to stick with it, because my kids want a swimmable pool all summer. The pool guy left me with a high CYA, which is down to 65 now at the start of the season. From what I read, that will probably be manageable. Those 3" pucks in my garage left behind by the previous owner are coming nowhere near my pool again!