Humans only need to rotate the pipes to get water.

Humans only need to rotate the pipes to get water. Even in moderate cold temperatures, hot water supply is also available to facilitate warm-up people. Water is not only derived from rivers, lakes, ponds or canals, but also uses sea water. The process of renegotiation has been carried out in countries that lack fresh water to meet demand. In addition there are also several countries undergoing sewage water treatment processes for reuse. This technology covers many aspects of supply sources, reservoirs, pipelines and recycling processes. If there is no improvement in engineering, water supply can not be channeled to residential areas as today.