Hello Page: The leak/leaks could be from many sources. Start by checking hoses on the washer. Check both ends. Check the shut off valves for leaks too. Then, shut off hot and cold water to the washer, mop things up and see if the water stays away. Have a look in the combustion chamber of the water heater. Look at fittings on top of the heater. Look at the legs of the heater. Is there any water in/on that heater? Check the end of the relief valve line. Is it wet? By determining which appliance it is, your problem is made half as big :). Let us know what you find.