The home inspection will come with some other small things that need to be looked at.Check all the water heating and HVAC, and water pressure in the building.see if you can locate the pressure regulator if you cant it could cost you $350 to find each and replace it.

That gets really expensive and when you multiply it by 5x most people find they try to tread water by going back to a day job and eventually can't sustain. 

If its city water/sewer the only utility risk is who owns the pipes.

Why buy a 200K house and keep it long term, so by the time its paid off its worth nothing because there is no water left?

The buyers home inspection found there was a leak and some water intrusion and that some drywall needed to be replaced. 

In Maine, it's very common for landlord supplied heat simply because heating oil and winters can be so unpredictable that both lower income tenants AND financially savvy blue collar tenants lean toward "heat and hot water included".

Also look for the electric/gas/water meters.

But, to your point, a water heater is the same regardless of what type of home you put it in.

It can penetrate into electrical outlets and cabinet crevices.We start with a white vinegar/water wash of every surface.

So I was not sure if that was water, trash, etc...