| 摘要 |
<p>Domestic water systems, a major task of which is to separate off pollutants. Water circulation within a house or building, which is also intended for the drive of generators or is assigned to water pumps or centrifuges or filtering devices. Alternative energy production for hot water and auxiliary lighting or auxiliary heating means form a supplement, also for the actuation of pumps, inter alia those which are assigned to the storage of water. Water storage means which filter drinking water before usage, furthermore discharge it to a water pressure tank which produces a sufficiently strong pressure column for the operation of devices, in particular also for firefighting in the initial phases of an outbreak of fire and beyond.</p> |
