- ABS plumbing pipes (I'm not clear on why that's bad)
http://www.hometime.com/Howto/projects/plumbing/plum_2.htm - just a description, not research on how it might be bad.
I think ABS is what I have in my duplex, but here they are called butylene. My contractor told me they are famous for being brittle. My inspector either missed them or didn't think they were something to warn about. I found out from the contractor that people in this neighborhood had filed and won a class action suit - some time before I bought the house - and those listed in the suit had their pipes replaced. Others have told me they are perfectly fine.
Well, one day I went to remove my hose from the hose bib in the front yard, barely looking at it, thinking, if thinking at all, that it was some silverish metal. It snapped off. I'm afraid to try to replace the bib (which doesn't leak but won't take a hose attachment now) because I don't want to snap the pipe within the house wall. Very annoying since I have some brass hose bibs that I brought with me when I moved, having in my prior life installed irrigation a few times, and having some leftover bits and pieces.
When I got a new stove, they found a big patch in the concrete (past pipe break?) when they dragged out the old one. My duplex neighbor had a plumbing wall break before I moved here. (I had never heard of butylene before I got to New Mexico.)
Anyway, changing out the pipes to pvc or whatever else is better now is an expensive proposition.
My place is a lemon - long story, lots of stuff the inspector missed. The ABS thing may be arguable, I'd research that more.
The wiring thing is a flag to me - I was told about needing improved GFI, thought sure, some new GFIs and no, my contractor later said the box was wired strangely, I need an electrician. (Money I don't have.)
Patio draining, eek. Mine drains weirdly by the back door, and I saw it as I went through the house, but thought I would fix it, knowing patio/walkway design as I do, but again, money money. Luckily water doesn't come in the house, but this all annoys my know-better self re the design.
I won't go on, but summarize that this housing tract is the worst I've ever seen for this kind of stupidity. And I'm irritated at myself for being in such a hurry to buy.
This doesn't mean yours is a lemon, but I'd check carefully on costs.