I setup this tumbler, turned it on, and the lid was leaking in less than 5 minutes. The lid locking/sealing setup is not the greatest. There is an extra lid o-ring supplied in the box, but that would not solve anything. My idea: slide a folded up piece of thin cardboard under the locking lever before you lock it. It allows you to put more pressure on the lid - and leak free! I started years ago with the dual drum tumbler from Harbor Freight. Let's see how this one compares.