The Jack’s Magic The Super Stuff is a multi-purpose liquid formula that will save you time and money. Using this at pool opening and closing will aid the chlorine or bromine in your pool to work longer and more efficiently. Not only will it prolong sanitizer effectiveness, but it will help prevent stains, scale, and tile line buildup. It also acts as an oil-in-water emulsion breaker, flocculent and descaler. Use The Super Stuff to help maintain crystal clear swimming water with less work.