Draining Water From Boat Fuel Tank

You need a large bucket preferably a five gallon one.

Draining water from boat fuel tank.

All fuel has some small amount of water in it that s caused by condensation settling in the fuel storage tanks that are part of the fuel distribution chain. It s pretty difficult to get a siphon tube to make the hard turns from the fill to the bottom of the tank. A boat owner s nightmare. The best method for siphoning fuel water is to remove the sending unit and siphon from there with the boat level.

With the separator shown in the top photo simply unscrew the canister and dump the water out. Make sure you use a clear hose and not a water hose. However depending on the boat and fuel system arrangement such filters may not be compliant with uscg or abyc standards. An owner might prefer to remove fuel from the tank for the winter rather than treat the fuel.

Remember working around gasoline can be dangerous. This moeller clear site water separator and filter allows you to see any water settled into the bottom of the clear plastic fuel bowl and has a large opening valve to drain the water out. Perhaps the fuel has been contaminated by water or another substance. There are several reasons why a boat owner might want to drain a boat s fuel tank.

Water in the fuel tank. To drain my boat s fuel system i first shut off the fuel line to the outboard and then run it dry either in the water at the ramp or in the driveway using water muffs until it stalls after burning all the fuel out of the carburetor. Whatever the reason removing fuel from a boat fuel tank is something that almost any boater can accomplish with a few tools purchased at any marina store. This video shows the steps i undertook to remove the w.

In order to clean your boat fuel tank you must first siphon out the gas that is left inside.