A natural swimming pool is one which is designed to harness the processes of nature to produce clean, clear water. These types of pools have been available in Europe for a while, but have yet to catch on in the United States, unfortunately. We always like reading about sustainable & better alternatives to common practice, and were extremely excited to read about the growing movement of natural, no-chemical swimming pools in this recent New York Times article >
Natural pools work by filtering the water through a filter zone, which generally involves a number of different aquatic plants on haydite rocks, as well as ultraviolet filters and a very small amount of chlorine. Through these processes, the water of a natural pool is able to meet European standards for bacteria levels, making it safe for swimming. Furthermore if designed properly the water looks crystal clear — and it won’t turn your hair green!
Obviously natural pools aren’t for everyone, as these pools require a fair bit of maintenance, as well as a different mindset as to how to deal with them. But for the interested the benefits are clear. The very low use of chemicals, means a lower impact on the environment, and the regeneration zones required for these pools lends itself to an integrated landscape design that will give your backyard a more organic and natural look. And we can only imagine that once you sort out the filtration issues, a natural pool is probably a lot healthier for swimmers as well.