out baloon on the small pipe, grab long grass stalk and tickle the sleeping seal, it will throw a trident in the barrell, use the wheels to regulate the big pipe, click on the barrel to put feed and use the pipe to line up with the seal's farts, once the bubble is in the pipe pull the lever, repeat three times then grab the balloon and walk back, if you fail the next scene you need to go back and repeat the whole operation