Patent ID: 11879236
Assignee: GREYTER WATER SYSTEMS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC E  B  C  Y | IPC B  C  E

Claim 0:
1. A method of filtering grey water comprising steps of,
filtering influent water from a shower or bath through a filter element;
monitoring one or more sensors located upstream of the filter element or in a by-pass around the filter element to detect a) the presence of a hold-up volume of influent water upstream of the filter element selected to indicate a decline in filter element permeability or free surface elevation of influent water upstream of the filter element selected to indicate a decline in filter element permeability or b) water by-passing the filter element;
cleaning the filter after the selected hold-up volume or selected free surface elevation is sensed, or after water by-passes the filter element, wherein cleaning the filter comprises flowing water through the filter in a reverse direction and contacting a flapper valve with the flowing water.