|Draining a barrel|
If your barrels are needing to drain to a place above where they are (not sure why you'd do this), then you'll need to get a pump of some kind (manual, electric, etc).
In the image above, you can see the water stain on the floor. That's from screwing in a hose bib too tight and cracking the bung cap. I didn't realize it was leaking until some time later. Be careful installing the hose bib to avoid the same problem.