I borrowed my father's compressor to finish some work on my deck. As you can see in the picture, it's been around the block a couple of times. After setting it up one day I could hear more air than usual escaping. Turns out the regular had broken right where the air hose connected. Duct tape from a previous attempt to stop an air leak was all that was holding the hose on the compressor.
Luckily, replacing the regulator is an easy job, and can be completed in less that half an hour.
Step 1: Materials and Tools
1/4 inch Mini Regulator - under $20. Most hardware stores should have one of these in stock.
Adjustable Wrench - for turning stuff
3/16 Allen wrench - for turning other stuff
Scrubbing pad - for scrubbing stuff
I didn't take a pic of the tools needed, I figure most folks know what we're dealing with here.