Quote Originally Posted by matthewnadeau View Post

They CYA will eventually come back down to normal levels.

I think that I need to go away from using the pucks as often as we have been using...
The CYA will not normally come down on its own but if you use unstabilised chlorine at a high level you will oxides the CYA down to a reasonable level. I had to do this last year when emptying was not possible and I used around 80-100 litres of liquid chlorine