Water losses in internal water supply services of residential buildings

Internal water supply is intended to provide a consumer with potable quality water for various needs. Leakages appearing in the course of internal water supply operation have a negative effect on the operation of a whole system. All mains reasons of water losses in internal water supply services have been studied. It was found that losses can be caused by a human factor and caused by technical errors in a system, for example, network faults. Based on the study of scientific works on water losses of internal water supply systems, as well as on analysis of various water loss options there is a new well grounded method presented aimed to achieve sustainable water saving directly in a building in the process of water consumptions. There were conclusions drawn saying that: design of an internal water supply system of a residential building should follow the scheme of reducing water consumption on the lower floors of buildings by zoning the entire system; it is advisable to use a system with water tanks; to achieve indirect saving of electric energy, it is necessary to use pumping units with an adjustable drive.