Leaking

Today I discovered that the leak detector sniffer is very sensitive, but also sensitive to water vapour. That means that a wet joint will appear to be leaking. It means that when I breathe near the probe it will appear to be detecting a leak. Combine this with the fact that a gas cylinder is just about as tall as I am, and you'll see why I've been having so many problems with detecting leaks on my gas line. Just to rub it in, I found this in a leak detector manual. (No, I've never read our leak detector's manual. We don't have one. If we did I would have read it.)