How do you drain fuel in a Toyota Previa?

To drain the fuel from a Toyota Previa, there is a fuel drain valve on the lower fuel hose (return hose) which is on the passenger side of the vehicle next to the fuel filter. Remove the clip and slide the return hose off the fuel filter. There is also a white rubber hose that exits from the fuel pressure regulator on top of the fuel filter. Clamp this hose off. Once clamped place a container under the end of the drain valve. Remove the drain plug and drain about 10-20 ounces of fuel. If the fuel pump has already been removed or the lines have been disconnected to allow fuel system depressurization, this procedure is not needed.