Yesterday, when I was trying to fix the backflow preventer, I forgot to turn the water back on. I got a call late at night, but I am scared of the dark. So I waited till the morning. Well, people apparently use the foam brush first, so that meant that the foam bush chemical ran out. Which caused the Sandpiper pump to start trying to prime, it could not, which caused the air compressor to run all night. Which is cool.