Quote Originally Posted by waste
Richard, thanks again for your knowledge and willingness to share it! (I actually didn't have to reach for my old chem textbook, nor the bottle of asprin , to understand this one !)
I must be softening a bit. The formula for how much pool water is needed to achieve a level of dilution using a continuous flow method is

% of Pool Volume = 100 * LN( 1 - (% Dilution / 100) )

Got a reputation to keep, you know.