How To Clean A Green Above Ground Pool Fast. Add the bleach to the pool at night, because it quickly gets degraded by sunlight. Backwash your sand filter for a couple of minutes.
This breaks up the algae, allowing the chemicals to work quicker. To clean an above the ground swimming pool or blowup type, take a plastic broom ($1.00 at a discount store) and sweep the debris on the bottom toward the skimmer. The water doesn’t appear any thicker than usual, it’s simply a little green rather than a little blue.
Above ground pool getting cleaner update 6.19.2012:
Usually the green will go away fast if you do not add to much chlorine. Dose the fc back up to 10ppm and repeat until the cc level drops and the fc level is nearly maintained. If the pool is so green you can't see the drain, just run a brush over the approximate location of the main drain at the deep end of the pool. Pour it into the water as you walk around the perimeter of the pool, and then circulate the water for six to eight hours.