They are recommended for pumping clean water without abrasive particles, and liquids that are chemically non aggressive for the materials of which the pump is made. As a result of their reliability and the fact that they are easy to use, these pumps are widely used in domestic and civil applications such as the distribution of water incombination with small and medium sized pressure sets, for transferring liquids and for the irrigation of gardens and allotments. The pumps should be installed in enclosed environment, or at least sheltered from inclement weather.