Natural Chemistry's Clear and Perfect provides pool owners with a highly-advanced water clarifier to neutralize microscopic particles in pool water which cause cloudy water. Clear & Perfect's formula collects and groups together dissolved microscopic particles, making them large enough to become trapped and removed by your filter, vastly improving overall filter system performance as well as restoring crystal clarity to your pool water.
I take care of a few pools in my area and I always keep this on hand to help clear up pool water. Works great, it's cheap, and it has never disappointed.