I'm checking the tank for water because it was atleast running before I put gas In last time. If I take the hose off at the bulb and get say a quart of gas out there, will that let me know if there's water in the tank? I know gas sits on top of water and that the gas to the motor comes out of the bottom of the tank so if there's water in the tank, what comes out should be mainly water in theory ? All this sound right?