Abstract: Often, within a fuel system, water is separated from fuel and collected in a water collection housing that includes a water sensor. The water sensor senses and alerts an operator when the water level rises to a point where it should be drained from the water collection housing. Installation of the water sensor may require drilling holes in the water collection housing. In the present invention, a water sensor is installed in a fuel system by positioning a first portion of the water sensor inside a water collection housing, exposing a second portion of the water sensor outside the water collection housing, and connecting the first portion and the second portion of the water sensor, at least in part, by positioning a third portion of the water sensor in a water drain assembly. The water drain assembly is positioned within a drain opening included within the water collection housing.

Abstract: In order to change a fuel filter within a fuel system, a fuel filter assembly in which the fuel filter is positioned is generally detached from the fuel system, allowing fuel to drain from and debris to enter the fuel system. The present invention reduces the draining of fuel from and the entering of debris in a fuel system by blocking, at least in part, fluid communication between the fuel system and the environment when the fuel filter assembly is detached from the fuel system. A valve is positioned within a fuel passage of the fuel system, and a valve engaging member is attached to a fuel filter assembly. The valve is closed, at least in part, by detaching the fuel filter assembly from the fuel system. When the fuel filter assembly is detached from the fuel system, the valve engaging member is out of contact with the valve. The valve is opened, at least in part, by attaching the fuel filter assembly to the fuel system.