Plumbing issues

So, our first full day at the house I went to give Morgan a bath. The water didn't get very warm so Aaron turned up the water heater a bit. Later that day he went to the basement to deposit some now empty boxes and discovered a huge plumbing leak. The ceiling was raining. There were pipes near it's showering, but none of them were the culprit of the leak. Hmmmm. Aaron did all the investigating he could. He found that the leak stopped when the hot water was turned off.
We called property management folks, and they got a plumber in, (even though it was the weekend). The guy was pretty confused about the whole thing as well. Especially when water leaked out of the light switch socket. He ended up going to one of the units that are still under construction to see how the pipes were laid out and everything. Then he came back and cut a hole in the kitchen wall. Apparently the person who originally did the plumbing made a rather dumb error. The clamp on the joint was on, but never tightened. Or something. So when the hot water was run upstairs it came leaking out of the joint, and when the water was hotter it expanded even more. Or something. So he fixed it and then did his best to patch up the wall. Now we are waiting for the builders to come and repair it completely.