Abstract: In an embodiment, a modular water filtration system includes a magazine and a base. The magazine includes a plurality of cartridge receptacles, a magazine input water valve, and a magazine output valve, where a first cartridge receptacle is coupled between the magazine input water valve and the magazine output valve. The base includes a first fitting configured to receive input water, a second fitting configured to provide drinking water, a base input water valve configured to be coupled to the magazine input water valve, a first solenoid valve having a water path coupled between the first fitting and the base input water valve, a base first valve configured to be coupled to the magazine output valve, and a first switch.

Abstract: A method including determining a first value associated with a first component of a water filtration system using a first sensor of the water filtration system, determining whether the first component is degraded based on the first value, and in response to determining that the first component is degraded, initiating a shipment of a replacement component.