Did you know many pools get cleaned without draining just with chemicals?

Did you know many pools get cleaned without draining just with chemicals? Take this pool that sat for 6 months and turned into a green swamp. Think you need to replace it? Not even close. All you need is a little chemistry and patience. First you add an algicide that kills the algae and bacteria. The water gets cloudy and the algae peel off the walls and float up. Then you scrub the walls with a brush to get rid of the buildup. Next comes a flocculant, a polymer that clumps all the dirt into big flakes. That junk gets heavier and sinks to the bottom. After 2 days, the water is clear and there is a layer of clumped gunk on the bottom. That is when the underwater vacuum comes in. It quickly goes over the bottom and sucks up the sediment. Then you just add a disinfectant, it kills bacteria and prevents blooms. And that is it, you have got a perfectly clean pool with crystal clear water. By the way, draining loses up to 30% of the water. That is thousands of gallons, which means thousands of dollars. So, do you still wanna swim in pools?