On with the siphon demonstration. Now comes the fun. Get another container and put it on the floor near the table. Slowly lower the open end of the hose until the end of it is just at the level of the water in the glass container. Now lower it one more inch and make sure the container on the floor is underneath.
Water freely flows out of the open of the hose.
The water has once again sought its own level. That's all there is to it. The secret is to somehow get one end of the hose well below the level of the liquid in the tank from which we wish to transfer the fluid. So take the hose, empty it by just lifting the end way up in the air and let the water run back into the glass container. Now stand on a chair so that you are well above the table and the glass container.