Photo-A-Day 2.0 #01742

We’re getting a new furnace for the house and our plumber has been at it for the past couple days. I’ve been taking photos of the progress as it goes along. Today I noticed that there are about five or six shut off valves for this setup. I’ve never seen that many before and I hope I never have to make changes to the settings there because I woul d have no clue what needs to be on and what needs to be off.