A filter system has a chamber body, an inlet that extends through the chamber body, and an outlet that extends through the chamber body at a location downstream of the inlet. The filter system has a plurality of fluid flow paths that extend between the inlet and the outlet. The plurality of fluid flow paths including first and second subsets, each including at least a respective one of the fluid flow paths. A plurality of hydrocarbon filters is disposed in the chamber body such that each hydrocarbon filter is disposed in a fluid flow path. The filter system directs the fluid to the first subset, and once each hydrocarbon filter of the first subset becomes saturated with hydrocarbons, the filter systems diverts the fluid to flow to the second subset.

There are provided a rainwater runoff contaminant filtration apparatus and a monitoring system therefor. According to an aspect of the present invention, a rainwater runoff contaminant filtration apparatus includes: a body in which rainwater runoff is introduced into an opening whose top end is opened and the rainwater runoff is discharged to an outlet formed on one side surface of a lower portion thereof; a filtering unit located inside the body and filtering the rainwater runoff introduced into the opening; a collecting unit connected to the filtering unit, collecting the rainwater runoff, and providing the collected rainwater runoff to an inner portion of the filtering unit; a connection sensing unit including a spring cylinder to connect the filtering unit and the collecting unit to each other and sensing a weight of the filtering unit on the basis of reciprocation of the spring cylinder; and a communication unit transmitting the weight of the filtering unit sensed by the connection sensing unit to the outside, wherein the connection sensing unit includes a contactless sensor located at an outer portion of the spring cylinder and a magnet located at an inner portion of the spring cylinder and moving in accordance with movement of the spring cylinder, and the communication unit transmits a signal generated by the contactless sensor sensing the magnet to the outside.

A refrigeration system includes a water circulation system and a replaceable water filter. The refrigerator includes a sensor that determines if a water filter is present, and a user interface that prompts a user to purge a water filter upon installation of a new water filter in the refrigerator. The water filter may include a memory storage device that stores information concerning the allowable life of the water filter, the remaining life of the water filter, and other information. Information concerning the remaining life of the water filter and other information can be displayed or otherwise communicated to a user by the user interface.

Systems and methods related to communication with and control of network-enabled water devices and sensors of various water systems are disclosed. Such water systems may include water filtration systems, water reclamation systems, sump pump systems, pool or spa systems, water softening systems, and plumbing systems. Such water devices may include chemical controllers, smart valves, pool pumps, sump pumps, water softeners, residential appliances, and manifolds. Such sensor devices may include flow meters, splash detectors, motion sensors, moisture sensors, humidity sensors, chemical sensors, water level sensors, pressure sensors, and cameras. Data received from network-enabled water devices and sensors may be processed at a remote server or a local controller, which may cause corresponding alerts or maintenance requests to be sent to one or more user devices or service providers or may automatically control one or more of the water devices and sensors based on analysis of the data.

A filter plate (1) comprises an opening (18) configured to receive at least one grid (2) provided within the opening (18). The at least one grid (2) comprises a body (2A) and one or more passages (2B) extending through the body (2A) for filtrate to flow through. The passages (2B) are preferably configured to allow filtrate to pass through the body (2A). The filter plate (1) may further comprise a wear detection device comprising at least one filament wire (2L) surrounding one or more passages (2B).

An authentication system for authenticating a water filter cartridge at an appliance is provided. The water filter cartridge comprises a connection assembly having one or more connection devices that are structured for engaging an electrical connector of an appliance water filter manifold assembly of an appliance, to establish an electrical connection between the connection assembly and a controller of the appliance. A method of use of the water filter cartridge at the appliance comprises inserting the water filter cartridge into a receptacle of an appliance water filter manifold assembly. A method of authentication of the water filter cartridge comprises establishing an electrical communication link between a memory device of a water filter cartridge and an appliance water filter manifold assembly of the appliance, and retrieving, via the electrical communication link, a unique identifier associated with the water filter cartridge from the memory device.

A filter plate (1) comprises an opening (18) configured to receive at least one grid (2) provided within the opening (18). The at least one grid (2) comprises a body (2A) and one or more passages (2B) extending through the body (2A) for filtrate to flow through. The passages (2B) are preferably configured to allow filtrate to pass through the body (2A). The filter plate (1) may further comprise a wear detection device comprising at least one filament wire (2L) surrounding one or more passages (2B).

A filter module analysis system configured for the analysis of a filter module having a filter element contained within a housing, the housing having an inlet, a clean outlet and a waste outlet. A clean outlet sensor assembly can be provided about the clean outlet, and a waste outlet sensor assembly can be provided about the waste outlet. A data collection and network communication mechanism can be configured to receive process and receive data from the clean and waste outlet sensor assemblies and transmit the data over a network to a server form storage and processing filter module statuses based on flow detected flow parameters.

A disposable filter including an integrated sensor is provided for filtering a working fluid and monitoring the working fluid and/or the performance of the filter. The filter includes a housing with an inlet and an outlet with filter media disposed within the housing in a flow path defined between the inlet and the outlet. The integrated sensor is disposed within the housing, where the integrated sensor monitors a characteristic of the working fluid or other performance characteristic of the filter. The sensor assembly may include a communication module. The sensor assembly may include a RF tank circuit with a capacitor plate, which may be disposed adjacent a bypass structure that is disposed adjacent the outlet. Movement of a moveable part of the bypass structure in response to a pressure buildup will cause a shift in a resonant frequency of the tank circuit.

A water-filtration system includes four distinct porous media through which water is sequentially routed in a compact, self-contained four-stage filtration process. The porous media improves water quality by removing unwanted contaminants from the water and adding minerals and compounds to the water to improve water taste. A housing contains the the porous media. The housing includes connection points for incoming and outgoing water. The water-filtration system may be inserted into a water line upstream of a desired source of high-quality water, or may be integrated directly into an appliance or device that requires high-quality water.