The Fuji Clean is Japanese. Japan has the biggest and most advanced sewage treatment industry in the world and is 20-30years ahead of Australia. Due to the population and the small space all houses in Japan must have Home STP’s. Japan has more than 10millions systems about 25 times more than Australia. Each of the 10million systems are tested by the government every year, and every system must comply. Therefore, the performance of the Fuji Clean is much, much high than any Home STP in Australia. Fuji Clean use media within the chambers of the STP to filter and purify, the media means the system uses less power and provides better treatment than any other system available in Australia.