The Mark III Siphon can be used for a variety of things, siphoning your pool draining a pond just add more hose. Using chemicals such as paint thinners or fuels can be dangerous to siphon from one can to another. The Mark III is designed with the drag racer in mind. It can eliminate the possibility of swallowing fuel during transfer from one container to the other. All you will have to do shake the end of the Siphon in the fuel or liquid and start a trouble free and safe siphon.