Karma On Tap

I work for a tankless water heater company. I talk to plumbers all day long. I get a lot of calls from people who have hooked up the very clearly marked COLD water pipe to the HOT connection on the unit and the HOT pipe to the COLD connection. This causes the heater to not work.

I am suggesting this to a plumber.

Plumber: “I’ve been doing this for over twenty years, and you don’t know s***!

Me: *Calmly* “The problem must be with the unit. I would advise you to shut off the cold water valve going to the unit—” *thus no water pressure to the unit* “—and remove the part to inspect it.”

I then heard the plumber drop his phone in a garbled mess of water spraying him and everything around him, something that could only happen if he had mixed up the pipes. I then giggled and waited for him to pick back up, make an excuse instead of admitting that he was wrong, and hang up.