R
Hose right behind the can. IT will drain everything.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
You're just looking to hone the other cylinder and not the one you are replacing? If there's no gouges and just a bit of aluminum stuck to the surface get some muratic acid from a hardware store and wipe the aluminum you want to remove with a rag with the acid. It will eat the aluminum and leave the plating. Just don't get it on any of the other bare aluminum surfaces.