Water utilization includes a wide range of technologies, which enables the use of various classifications and cathegories of water source from supply water to drinking water. In the long term the functional solution is an important presumption for a carefree function and a water sources usage for elected purposes.

The solving conception of all objects, areas must be best matched as it is possible to locally specific conditions. It is necessary to create a condition for retaining and also for usage of rain water as a  water source for reversal and ecomonic exploitation  at built-up and devisabled areas.