You can pressure test the plumbing and hot water heating system using a generator and a small air compressor.

Old plumbing.

Certainly it wouldn't reflect well on you if that were to happen...But, this can be avoided by carefully testing the plumbing before turning on the water:- First turn off the water at the entry-point to the house, and then turn on water at the meter.

I have been able to get price reductions after we had a contract, one time for an inspection issue (plumbing, not something that was obvious during a walk through) and another time when the appraisal came in lower than expected.Offer whatever price makes sense to you.

It is rough plumbing for another house?

I live in a town that will demand code from the plumbing, electrical and structure (for every silly thing...forget the major stuff....some towns might let little stuff fly...not mine) and my insurance does have law and ordinance coverage (I double-checked to make sure).

House is REO in need of repairs: needs carpet, appliances, some plumbing and electrical work, some exterior touch ups.

have the plumbing and electric been updated?

On a typical one of my houses, I will spend about $4000 every 20 years on a new roof, $3000 every 20 years on new HVAC and about $5000 every 20 years on Surprises (Plumbing, Electrical, Termites, etc).

Remember HVAC, Roof, Plumbing when looking at a property.