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 is mechanically connected to the pump handle of a water intake pump. The retrofit assembly may include multiple arms and hinge points for coupling the second pump to the pump handle, as well as a flow path from the output of the water intake pump to the input of the second pump and a flow path from the second pump to a filtration system. The flow path between the two pumps typically includes an unfiltered water outlet.