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).