Honey I'm blowing out the sprinklers

How does one go from blowing out the sprinklers to losing a room in your house? I'll explain! My illustrious husband had good intentions of blowing out the sprinklers on Saturday and boy that was a learning experience. He ended up blowing two valves because he had the pressure up too high on his compressor. No sweat for the handy man though. A few tools and Matt's handy man hands later the valves are fixed. Our turn off switch for the sprinklers is located in our office downstairs and upon moving in the house it was pointed out to us that some of the paint was bubbling up but the area was not showing any moisture. So we didn't think anything of it. When Matt went to turn the water off he noticed the valve was leaking again and found a warped O ring in there. When he went to investigate a little deeper in the wall it was covered in mold. He decided to take just a little portion of the wall out to see how far it went back. 4 hours later he comes up and said you don't want to see what I did to the office. I asked what did you do? He told me I was going to cry if I saw it. The door was sealed off so I was looking from outside the window and half of my walls were completely gone. The sheet rock and insulation were gone with the studs showing. He had found mold on the sheet rock and insulation. It wasn't as bad as Matt was making it out to be but my walls are gone. I actually was the one staying calm. The only thing I said was "Well, you always wanted a home you could finish...now here's your chance". So we're kicked out of the downstairs until hubby can get the mold situation taken care of and the walls finished. Joy is everywhere!