This is the first project that is actually all the way completed that I was supervising/working on. None of the pipes or valves were there before we brought them in. At first we didn't have a diagram or anything to look at and they were expecting us to put together a twenty piece jigsaw puzzle of heavy pipe. Luckily they found a drawing after a little while. It took about three days to put it all in except for the big bending piece that I zoomed in on in the middle of the video. The A/C people put part of the compressor in the way so we had to get someone refit, cut, and then weld the pipe back together. It was hard work but not too complicated overall.