Management of a body of water

摘要

The installation disclosed comprises a body of water, a pump, a filter and pipes connecting the body of water, pump and filter. Additional pipes lead from the pipe to the return pipe and to waste. Solenoid operated valves are provided in the pipes so that flow through these pipes can be permitted or prevented depending on whether the valves are open or closed. A pressure sensor detects pressure at the inlet of the filter. A programmable controller controls operation of the valves all of which can be operated independently of the others. The body of water will normally be a swimming pool but could be a tank in which aquatic creatures are grown.