As said, check the valve assembly for proper movement. W/ the assembly being 8 years old it may need replacemnt. The wire connection on my 2000 model Jag is the reason my switch no longer functions via the control switch near the shifter. I am able to fully close the valve by moving the valve lever by hand so I know my assembly is still good. The alternative to valve assembly replacement is plugging the livewell manually. You will have to remove the bottom screen to do so. The screen simply screws on/off.