In regards to this post http://community.livejournal.com/bad_service/1142634.html, we googled for our property agent to see if we could find her mobile number, and we actually did! So we called her and were very apologetic for bothering her, and explained the hot water situation and said we just wanted to see if we could class it as an emergency and get a plumber out. She told us no, partly because she wasn't in our state at the time (why the hell does that matter?) and also because she thought our house was a gravity fed hot water system and "that's just the way they are." I was royally pissed, so my fiance called his dad, who is an electrician but is generally a jack-of-all-trades, and we arranged for him to come over today to have a look at it and determine whether or not it was gravity fed. We had to shower at the old house again yesterday.
So his dad comes today and confirmed it is NOT a gravity fed system, and that there is most likely a blockage in the pipes affecting the water pressure. So we've written a letter to give to the real estate people tomorrow (but we'll be calling them first thing too, the letter is just for evidence). Also, his dad checked our smoke alarm (the condition of which was not noted on the inspection sheet and we told the property agent and she said just to test it and get back to her, which we were going to do today) and there isn't even a battery in it. We could have died in a fire last night because of her and her shoddy inspection.
I'm sure there'll be another update in this saga once we call the real estate people tomorrow. Sigh.