A filter candle (1) in a backflush filter housing (2) has a cylindrical filter wall (3) and includes an internal hollow flushing element (8) divided into a flushing section (9) having a flushing port (10) for backflushing and a turbine section (11) for rotation of the flushing element. The flushing section tapers from a first end to a second end. The turbine section tapers from a first end to a second end and has turbine blades arranged on the outside. The first end of the flushing section is connected to the first end of the turbine section at a transition position (21). An outside of the flushing element forms a cylindrical restriction at the transition position so that the part of the cylindrical filter wall of the filter candle extending at the turbine section may be backflushed by means of fluid also driving the turbine.

A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.

A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.

A filter assembly for filtering liquid includes a filter housing and a filter cartridge disposed in an enclosed space of the filter housing. The filter housing including a cap affixed to the bowl to form the enclosed space. The cap including a fluid inlet port, a fluid outlet port, and a gas venting port for the enclosed space. The filter cartridge includes radial projections disposed in slots of the bowl blocking rotation of the filter cartridge relative to the bowl. A method of making a filter assembly includes inserting a filter cartridge into a bowl, and affixing the cap to the bowl.

A filter assembly for filtering liquid includes a filter housing and a filter cartridge disposed in an enclosed space of the filter housing. The filter housing including a cap affixed to the bowl to form the enclosed space. The cap including a fluid inlet port, a fluid outlet port, and a gas venting port for the enclosed space. The filter cartridge includes radial projections disposed in slots of the bowl blocking rotation of the filter cartridge relative to the bowl. A method of making a filter assembly includes inserting a filter cartridge into a bowl, and affixing the cap to the bowl.

A dishwashing appliance with a shrouded filtration assembly for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, and a shrouded filtration assembly in fluid communication with the spray system, the recirculation pump, and the drainage pump. The shrouded filtration assembly may include a lid, a filter frame, and a sump housing.

A dishwashing appliance with a shrouded filtration assembly for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, and a shrouded filtration assembly in fluid communication with the spray system, the recirculation pump, and the drainage pump. The shrouded filtration assembly may include a lid, a filter frame, and a sump housing.

A filter or intake screen 100 (“filter”) for removing parties from a fluid has a filter media 110 having a first side 120 and an opposite second side 130, wherein the fluid flows, in use, from the first side 120 to the second side 130. The filter 100 further comprises a discharge port 160 provided at a first end of the filter media 110 on the second side 130 of the filter media 110. A plurality of vanes 140 are provided to the second side 130 of the filter media and are configured to direct the flow of water from the filter media 110 towards the discharge port 160. The flow of water from the vanes 140 discharges into an interior volume 150 which is in fluid communication with the discharge port 160, wherein a cross-sectional area of the interior volume 150 decreases with increasing distance from the discharge port 160.

A module alignment element, and a filter capsule including the module alignment element, a method of filtering fluid using the filter capsule, and a system including the filter capsule, are disclosed.

A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.