You guys are Sooooooooooooooooo Smart. I had a air leak under the gage where it screws in. I pulled the gage & it had a Teflon washer in the bottom. I then put some Teflon tap on the theads being carful to not let any off lap over the threads. pumped her up & was still getting a small leak. I then pulled the gage & found another washer in the bag that comes with it. Screwed it down, & still a very small leak. It was seating against that those washer but I did not want to tighten it any more. So I put put a new strip of tape on the threads. Success !!!!!!!. Can those Teflon washers be bought some were? If not I can buy a stick of Teflon rod & make some in my lathe, but I would whether buy them & extra o rings exc. Fly