Sodium Tetraborate

[waste]

Evan, quick response!
I came back just to check the post # (I plan on updating the China Shop rant to include what I've newly posted here). I remember a thread about 'limiting factor', but haven't 'loaded' it into my knowledge base - perhaps I should give it another look. Thanks for the immediate and, as per usual informative, input However, they claim that 'you will not have any algae in the pool when you open it', this is completly untrue! I realize that there are 'other factors' involved, but they make a claim that can not, and is not supported (I'm sure you are right about the 'food'). Most pools I open that are 'swampy' have a lot of leaves,etc on the mesh cover, and the cover has standing water on it (thanks to all the rain we've recently recieved). I'm sure you are on to the cause of the problem. Thanks for all your help, not only here, but throughout the forum!