But water, this is not only the main source in providing everyday life. The water is able to be as precipitation, or to be noticed from the melting of snow. In favor of collecting similar water, you will need a septic tank unique. The septic tank is used in favor of detonation and in favor of water purification. Water passes anaerobic cleaning in a septic tank, passing a certain amount of step. Daring filtration removes the SOR, bacteria eradicate most of organic mergers, preserving the precipitate as silt, after which the ionizing purification of the remaining water is also carried out in favor of preventing the excess of iron.