Hi ..... I'm going to be looking at a vacant mobile home in a rural area. It was never hooked up to any water source. I know how to hook up a pressure gage to the outside spigot and pump up the pipes with pressure. I had to do it on the home I'm in now. What I'm wondering is, how do I keep someone from tampering with the gage if you're not there. Do they sell some kind of cover you can lock ? Thanks . . . Alan