There are two hand holes in the floor in between the motor and the Captains seats, use a screw driver and carefully pop them open. You should see two valves down in the bottom. Each valve should have a tag on it that tells you what it feeds. One should feed the Livewell, the other should feed your washdown hose connector. You may have to follow the hoses. Anyway, if you open the valve, water can get in through the hull directly under the valve when the pump starts. Keep in mind that water can get in if you have a hose break so It is a real good idea to keep these valves closed when not in use.