Quote Originally Posted by gordyjamz View Post
As far as how much to add, every floc is different. You'll have to follow the directions on the bottle. Also, make sure you adjust your ph to the ph range listed on the bottle for the best results.
That, in a nutshell, is why we've been reluctant to recommend floc usage. But, we've had so many slimed pools this year, we've relented. However, I have some hope of identifying floc products with 2 or 3 standard ingredients in known concentrations. Even then floc usage is tricky, but if you use PAC instead of alum, it's not quite so 'twitchy'.

It doesn't help in the least though, that most of the chemical companies want to pretend that THEIR product is special and unique, when in fact, they are all single ingredient products, selected from one of 4 or 5 possible ingredients. The only variation is WHICH one they've picked, and how much they've DILUTED it.