Almost forgot--and no laughing, please--my pool is just a pop-up, 3000 gallon. I used the 6% bleach and put in 174 ounces, should have put in 102 ounces. It's not quite double, but who's counting at this point! The pool is a murky, greenish blue with shiny stuff floating on top. My husband is such a sweetie, he said if the pool is ruined we'll just get another one.