Can water be recycled?

This problem is the problem of water cycle, is fully recyclable and re-use. Is also the entire system of the arteries. The water circulation system has a reservoir, water pump and water distribution network composed of the entire water cycle system is: water pump out through The inlet pipe enters, flows from the outlet and returns to the reservoir, and the advantage of using the water circulation system is to save water. The water in the reservoir will evaporate with the process of cooling less and less, so often observe the reservoir water level is too low when the timely water, water selection is also very important although the spring, well water, rivers and lakes in the water Can be used, but must be no pollution of water quality, water PH value is generally between 6-9, PH value is too high or too low water are not used, and with brick and other heavy pressure solid, commonly used water pump There are: submersible pumps, centrifugal pumps, deep well pumps, pipeline pumps and so on. The role of the pump is to pressurize the water pressure to the system, and send it to the water pipe network.