Osmosis a process is following with the liquid material, the laws of physics and chemistry, by a membrane or cover walk. This membrane is half-permeable which signifies, she lets only certain materials and molecules penetrate. The process of the osmosis is got going by the different concentrations in engaged molecules on one or the other side. There where the concentration is low in engaged materials, the water penetrates by the membrane and provides for a balance. With the return osmosis it is counteracted against the natural process of the osmosis, while artificially a pressure is generated at the side where the concentration is lower in relaxed materials. By this Überdruck diffundiert the uncleaned tap water in the water filter against his real attempt by the membrane (filter) on the side where the clear and pure water should gather. On the way of the water by the membrane the before relaxed pollutants are held back by the water filter. If the half-permeable filter membrane has taken up a too high amount in pollutants, must be exchanged of the filters. To prevent a damage of this fine membrane during the process of the molecular filtration by bigger particle, still prefilters are put before the real return osmosis water filter. They clean the later drinking water and protect improve the result with the return osmosis. Return osmosis with the seawater desalination and water treatment If of custom water or sea water fresh drinking water should be won, the process of the osmosis return is involved in the ideal case always. Large-scale industrial solutions with a molecular filtration are defeated naturally by other problems than small return osmosis water filters for domestic use. Unfortunately, thus the tap water of such big arrangements is not always so unloaded in practice at the end, as the drinking water which was won with an osmosis arrangement by Aquasafe. Chlorine, Biozide and other pollutants which are used to the cleaning of the sensitive membrane reach in the drinking water and are taken up by the person. The steps of the cleaning of the osmosis arrangement by Aquasafe Like are described in the first step over the prefilter sand, rust and dirty particle from the water remotely. The second filter step, the active coal filters, cleans the water of gases and chloride. In the third step a coal block cleans microsediments up to a size of 1 micrometer. Now it comes to the real process of the return osmosis with which all molecular particles by a size of more than 0,0001 micrometers are took away from the later drinking water. After the real cleaning the drinking water is refreshed in an active coal-postfilter and is revived in the last step by the Vitalisierungskartusche.