| 摘要 |
Water is supplied from a mains water supply station to a main supply conduit which feeds a plurality of regional supply networks, via respective pressure reducing valves, at respective regional pressures. Each regional supply network has a boundary value for a parameter related to a property of the water, which may be water pressure or concentration of a water treatment agent. Each network has a critical point at which the value of the parameter is deemed least acceptable. Water supply characteristics in respect of each regional supply network are monitored and the water supplied into the main supply conduit is processed to ensure acceptable values of the parameter are maintained at each critical point.
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