A fluid filtration system includes a fluid storage vessel such as a bioreactor, a filter housing including a filter element disposed therein, a pump coupled between the fluid storage vessel and the filter housing, and a flow diverter disposed between the pump and the filter housing. The pump is configured to move fluid from the fluid storage vessel through the filter element, and the flow diverter is configured for selectively directing fluid received from the pump to the first or second end of the filter housing. In a first mode of operation, the flow diverter directs flow through the filter housing in a first direction, while in a second mode of operation, the flow diverter directs flow through the filter housing in a second direction opposite the first direction.

Provided is a water-purification cartridge to be replaceably accommodated in an accommodating portion of a water purifier. The cartridge includes activated carbon that removes impurities from water, forms, within the water purifier, a raw water flow path through which raw water flows downstream without passing through the activated carbon and a water purification flow path through which raw water flows downstream while passing through the activated carbon, and further includes a buffer portion that is disposed, within the water purifier, at a position upstream of flow path switching valves for selecting discharge from the raw water flow path or discharge from the water purification flow path and downstream of the activated carbon and that cuts off a water hammer propagating from the flow path switching valves to the activated carbon.

A water filtration system is provided. The system may include a connector and a filter configured to be mounted in the connector. The connector may include a connector body, a connector inner core, a connector core baffle, a connector body water inlet of the connector body, and a connector body water outlet of the connector body. The water filtration system may have a filtering configuration and a bypass configuration. In the filtering configuration, the water filtration system may be configured to direct water through the filter. In the bypass configuration, the water filtration system may be configured to direct water out the connector body water outlet without passage through the filter. The water filtration system may be in the filtering configuration when the filter is fully mounted in the connector. The water filtration system may be in the bypass configuration when the filter is not fully mounted in the connector.

A pool filter system comprising a plurality of filtration chambers configured to filter pool water, a water supply inlet, a water return line, and a control valve. The water supply inlet is configured to receive unfiltered water from a pool of water. The water return line is configured to return filtered water to the pool of water. The control valve receives water from the water supply inlet. The control valve has a backwash nozzle configured to rotate and sequentially align with each of the plurality of filtration chambers. The backwash nozzle has a first position aligned with a first filtration chamber and a second position aligned with a second filtration chamber. The control valve is configured to backwash water through the first filtration chamber when the backwash nozzle is in the first position and through the second filtration chamber when the backwash nozzle is in the second position.

A method for simultaneous filtration and non-discharge backwash operation of a pool filter. Water is received from a pool of water and passed to a control valve having a backwash nozzle aligned with a first filtration chamber. The water is forced down through all of the filtration chambers except the first filtration chamber and forced up through the first filtration chamber. The backwash nozzle is aligned with a second filtration chamber. The water is forced down through all of the filtration chambers except the second filtration chamber and forced up through the second filtration chamber. The water is passed through the backwash nozzle and an internal backwash valve to a sedimentation collection and separation system, where sediment is settled out of the water and the water is filtered through a final filtration media within the final filtration chamber. The water is returned to the pool of water.

A control system for a water filter assembly comprising a filter having an RFID tag and an RFID sensor to generate a RFID signal containing data related to the filter. A valve assembly moves between a shut off position, an operational position directing the flowpath of the water supply through the filter, and a bypass position. A controller communicate with a lawn irrigation system to determine if the irrigation system is operative. When operative, the controller has the valve assembly switch to the bypass position. The controller also receives the RFID signal to verify if the filter is proper. The controller also receives a leak signal from a leak sensor and has the valve assembly automatically switch to the shut off position if a leak occurs. The controller can name the leak sensor with a location and indicate battery life of the leak sensor.

A attachment and detachment apparatus removably attaches a filter container containing a filter, as a part of a filtration apparatus that filters fluid with the filter. The filter container includes a first mounting protrusion having a filter container flow path in fluid communication with the filter. An outer periphery surface of the first mounting protrusion includes at least two curved surfaces respectively formed to be at least a part of an arc surface. The attachment and detachment apparatus includes a first mounting protrusion holding part that holds the first mounting protrusion. The first mounting protrusion holding part having a holding part flow path for the fluid and a notch communicating between an area surrounded by the inner periphery surface and an outer side of the first mounting protrusion holding part.

An apparatus includes a chemical filter fluidly coupled between a source for a processing solution and a nozzle to dispense the processing solution. The chemical filter is configured to filter the processing solution from the source. The apparatus may include a vacuum pump that is configured to apply a vacuum to the chemical filter. The apparatus may include a valve system configured to operate in a first operating state and a second operating state, where in the first operating state the valve system is configured to couple the source to the chemical filter and block the vacuum to the chemical filter, and where in the second operating state the valve system is configured to couple the vacuum to the chemical filter and block the source to the chemical filter.

A valve assembly includes a housing body defining a first opening, a second opening and an internal chamber. A first mechanism is provided in the housing body to control fluid between the first opening and the interior chamber and a second mechanism is provided in the housing body to control fluid between the second opening and the interior chamber. The first and second control mechanisms operate independently.

A valve assembly includes a housing body defining a first opening, a second opening and an internal chamber. A first mechanism is provided in the housing body to control fluid between the first opening and the interior chamber and a second mechanism is provided in the housing body to control fluid between the second opening and the interior chamber. The first and second control mechanisms operate independently.