NATURAL POOLS CONSIST OF TWO ZONES:
A swimming zone, similar to a normal pool. And a regeneration zone which acts as the filter for the pool. The regeneration zone cleans the water as a wetland would in nature.These wetland areas can be created inside the pool which gives the feel of a single body of water, or they can be built in a separate part of the landscape, allowing the water to flow back into the pool.
The aquatic plants you use have roots that quite literally clean the water for you, and filter out contaminants and harmful bacteria, which eliminates the need for chlorine. Pumps keep the water circulating and UV filters or bio-filters remove additional undesirables, while skimmers can get rid of floating debris. Perhaps even better? You don’t have to keep tabs on chlorine levels or balance the pH.