Pump Works only when the target container is lower than the source container. When liquid comes close you can pinch the hose and remove the hand pump placing hose end in target container.
Never start the siphon process with your mouth, it's extremely dangerous and grossly inefficient. Not suitable for drink water, salt water and any chemical & corroding liquids.
Rubber hand pump that starts siphoning liquid flow quickly.
You never have to start the siphoning process with your mouth
