How do you syphon gas out of a motorhome?

To siphon gas out of a motorhome, you'll need a siphon pump or a length of clear plastic tubing. Insert one end of the tube into the gas tank and the other end into a suitable container at a lower level. Create suction by either using the siphon pump or by sucking on the tube until the gas begins to flow. Ensure you take safety precautions, such as working in a well-ventilated area and avoiding any open flames.