sheet rock will clear the water,i have done it on 3 different ponds.it does however take alot of product to work.it took us about 2 pickup truck loads to clear a 1 acre pond we built and that seems to be the average amount needed.it will float when you put in the pond for about 1-2 days then it will slowly break down and start to work,it does take about 1 week to make a difference.
