Self-contained pressurized water delivery system

Claim 1

An improved self-contained pressurized water system of the type comprising a source of electric power, an air-vented limited capacity cold water reservoir, a hot water heater including a limited capacity hot water storage tank, a pressure surge tank for maintaining the output pressure of the water system and pump means for drawing a supply of water from said reservoir and providing said supply either to said hot water storage tank or to one or more user operated outlets, all of these components being interconnected with associated inlet and outlet piping and valves to control the rate and time of the output flow of hot or cold water from said system, wherein the improvement comprises: (a) a low pressure switched valve in the outlet line from said reservoir adapted to close the outlet from said reservoir and to shut off said pump means whenever the output pressure from said reservoir falls below a preset level; (b) a low pressure actuated switch in the inlet line to said hot water heater adapted to shut off the power to a heating element in said hot water storage tank whenever the inlet water pressure to said storage tank falls below a preset level; and (c) means for circulating and aerating the water in said cold water reservoir.