About three weeks ago I broke my first sprinkler head in a lady's yard. It's an old, unused system but apparently still gets water somehow. She wasn't too upset and I offered to repair the line. Went out this morning and had a hard time finding the plug I had dug so I broke out the detector. Nothing. Can't get a hit even though they were ringing up 85 on the AT Gold. I try to find other sprinkler heads and start marking off my 80s hits. Dig one and nothing. Dig a bigger hole and get a hit. No sprinkler head, but a 1905 Barber dime! My first Barber. The owner was very excited at the find so I let her keep it. Still couldn't find the dang sprinkler head though. Trying again in the morning.