Abstract: A contaminant measurement system is provided. The system is operable to detect and measure a concentration level of a preselected contaminant, e.g., lead, in water disposed within a chamber of the system. The system includes a detection agent that is operable to interact with the preselected contaminant in the water. The detection agent can be a plurality of polymeric beads or a membrane, for example. The system has a sensing circuit that includes a pair of electrodes spaced from one another and both at least partially disposed in the water. A controller is communicatively coupled with the sensing circuit and is configured to receive one or more electric signals from the sensing circuit. The controller determines a parameter indicative of the concentration level of the preselected contaminant based on the one or more electrical signals. The controller then determines and outputs the concentration level of the preselected contaminant.

Abstract: A variable shelf assembly for a refrigerator appliance, as provided herein, may include a stationary hydraulic actuator, a shelving bracket, a movable hydraulic actuator, and an actuator handle. The stationary hydraulic actuator may be extendable between a shortened position and an elongated position. The shelving bracket may be slidably mounted in mechanical communication with the stationary hydraulic actuator to move along a vertical direction between a first extreme position and a second extreme position. The first extreme position may correspond to the shortened position and the second extreme position may correspond to the elongated position. The movable hydraulic actuator may be mounted to the shelving bracket to move therewith along the vertical direction. The movable hydraulic actuator may include an input cylinder in fluid communication with the stationary hydraulic actuator. The actuator handle may be movably attached to the shelving bracket.

Abstract: A contaminant measurement system is provided. The system is operable to detect and measure a concentration level of a preselected contaminant, e.g., lead, in water disposed within a chamber of the system. The system includes a detection agent that is operable to interact with the preselected contaminant in the water. The detection agent can be a plurality of polymeric beads or a membrane, for example. The system has a sensing circuit that includes a pair of electrodes spaced from one another and both at least partially disposed in the water. A controller is communicatively coupled with the sensing circuit and is configured to receive one or more electric signals from the sensing circuit. The controller determines a parameter indicative of the concentration level of the preselected contaminant based on the one or more electrical signals. The controller then determines and outputs the concentration level of the preselected contaminant.

Abstract: A bulk additive dispenser and clothes washing assembly are generally provided herein. The bulk additive dispenser may include one or more features that can be mounted or placed away from a washing machine appliance. A storage tank may be positioned outside of a washing machine appliance and define a bulk cavity for receiving a wash additive. The electronic pump may be attached to the storage tank in fluid communication with the bulk cavity to direct wash additive therefrom. The dispenser controller may be attached to the storage tank in operable communication with the electronic pump.

Abstract: A bulk additive dispenser and clothes washing assembly are generally provided herein. The bulk additive dispenser may include one or more features that can be mounted or placed away from a washing machine appliance. A storage tank may be positioned outside of a washing machine appliance and define a bulk cavity for receiving a wash additive. The electronic pump may be attached to the storage tank in fluid communication with the bulk cavity to direct wash additive therefrom. The dispenser controller may be attached to the storage tank in operable communication with the electronic pump.