WATER SUPPLY SYSTEM WITH FILTRATION AND RETROFIT ASSEMBLY

摘要

A water supply system in accordance with the invention includes pumping in which there is a mechanical co-dependency between the generations of liquid-draw pressure and filtration-drive pressure, but a hydraulic dependency of the application of the filtration-drive pressure upon release of water from the liquid-draw pressure. In one preferred embodiment, the system is enabled by a retrofit assembly in which a second, filtration-drive pump (140) is mechanically connected to the pump handle (142) of a water intake pump (138). The retrofit assembly may include multiple arms (158 and 160) and hinge points (164,168,170) for coupling the second pump to the pump handle, as well as a flow path (148,150) from the output of the water intake pump to the input of the second pump and a flow path (178) from the second pump to a filtration system (152,154). The flow path between the two pumps typically includes an unfiltered water outlet (174).