BIOTOP Natural Pool Inc., has officially entered the U.S. market, with the introduction of its BIOTOP Natural Pool and the BIOTOP Living Pool concepts. The launch comes after nearly five years of research, planning and market development. The company's first North American project, a natural pool on Nantucket Island, was completed in 2009.

According to a company press release, Austria-based BIOTOP has been offering natural pools in Europe since 1987. The Natural Pool concept has similar characteristics to a lake, and the Living Pool looks like a traditional pool, but uses no chemicals.

There's growing interest in natural pools here in the United States, and the Animal Planet network recently debuted "The Pool Master," a show focusing on the building and design. Will BIOTOP continue to bolster the trend?