I think you would hear the sound of tools hitting the can. Check where you keep your spare sprinkler parts. Or somewhere in between the job and a sink. I'm sure you washed your hands after the sprinkler repair. As I said in your rebuild post, I take all my spare tools and use them in job specific tool bags or boxes. One for electric, one for plumbing, etc. That way, I just bring the plumbing bag out to the job and the tools go right back into the bag. I learned this by watching my father throw all my tools into shopping bags or a bin to go work on a job at home or at a brothers house. They never made it back to my tool box. One of these days I'm going to find 10 bags full of my tools in the basement. I have rebuilt or reorganized every other section of my house (bought parents house) and they are nowhere to be found. Maybe I should start looking in my brothers garages. Lol. I have bought the master craftsman tool set about 4 times over the course of my life due to tool lose. Between my dad and brothers they really knew how to empty a tool box. Since everyone is out of the house and my father has unfortunately past, my tools have mysteriously stayed put. I haven't lost hope that one day I will find that cash of tools in shopping bags. I will probably find 5 or 6 9/16 wrenches and 10 or more 5/16 sockets. Oh, and all of my old pliers and vise grips. They were my dad's weapon of choice. Lol