Pipe-direct drinking Water is the shorten form of Pipe directly supply drinking Water This system adopts the way of dual water supply by installing water treatment equipments in buildings or residence areas. This kind water supply system deeply purifies the natural water using the special water treatment technology , then sends the purified water by adding one piece of in depended water pipe aside the tap water pipe to water point for directly drinking. The working principle of this system is setting up water purifying points in living areas, cabarets or offices, and then deeply treats the natural tap water So all noxious substances such as organism, bacilli virus and so on are removed and leave the instructive microelement and mineral substance. And the treated water is sent to costumes' home, or guest room or office by the 24 hours cycling pipe web system built with qualitative pipe material for them to directly drinking. As a result, all noxious substances such as organism, bacilli, and virus and so on are removed and leave the instructive microelement and mineral substance. And prevent secondary pollution, so guarantee fresh and live and clean, pure the four greatest characteristics and avoid the inconveniences of booking water, sending water, and changing water. This kind of drinking water method has widely been used in such as Europe-American, Japan and so on developed countries. Direct drinking hot or cold water, heavy water and line type dual water supply has becoming the standard equipment for buildings in metropolises and cities of our country. Main characteristics 1: For house developer: According to our study data collected from our costumers, the cost of the direct-drinking system is 6-20 RMB per square meter, but more 100-300RMB added income can be sold per square meter because of this adding selling point .and also the housing management agent can gain special stable increment income from this operation. With the rising of the costumes water using requirement level and the changing of water using habit, dual water supply becomes more and more popular, so it can bring great economic benefit and social benefit to the housing develop program. 2: For the owner All people like to live in a completely-equipmented, convenient and humanized environment. This situation brings forward both new requirements from the costumes and business opportunities for developer to increase profits. And direct-drinking water becomes the welcomed consumption method because the quality of direct-drinking water is more