Originally Posted by dabokey

FIX: I read on another forum that dropping a U.S. dime would do the trick. Sure enough, this works perfectly! A dime has precisely the perfect diameter to create a seal at the base of the auto-siphon.

Originally Posted by Revvy

Other people have found that the gasket on the bottom end of the racking tube (that fits inside the big tube) may be bad, or dried, some have added some keglube/foodgrade silicone grease around it to make a better seal, others just put some water on top of the gasket (like with a turkey baster) inside the tube, and that makes for an air tight seal.