So no FHA, and the buyer walked.A worst case scenario would be that there is no spot on the lot that passes septic test and here the alternative would be a holding tank (no drain field) and would have to be pumped out every time it filled up, which could be as frequently as once a week with a family usage. 

Pictured is my basement drain overflowing with water - it only happens when the washer machine is draining into the sink.

It was used on interior and exterior walls, foundations, drain pipes, ceilings, decks, floors, radiators, railings, windows, trim, doors, door jambs, shelves, built in's... it was used on EVERYTHING.

The house is an emotional drain on the owners and they may step away altogether for the $70k and that would be fine, however I have an inkling that I may be able to sweeten the deal for them by giving them a cash flow stream into their retirement.  

Water supply hose leak / rupture, drain hose leak / disconnect from drain pipes, water pump failures, etc.The paint build-up - that will need EPA RRP "contractor" almost definitely considering the age.I have a 150+ year old rental house.

OR shut off water at meter --and drain all lines-

In the future, I will use a business entity for my investments, and I am man enough to say that even though I was being drained by so-called "family", I also bit off more than I could chew.Moral of the story: I have about 8 foreclosures sitting on my credit right now that were foreclosed around '07-'08.

Has the sewage/drain and natural gas hot water heater costs gone up-- perhaps the tenant takes very long showers?

Unless you have a bone dry environment, which you do not.One other thing: Have you checked to make sure that the drains for the tub/shower, toilets and sinks and washer are all properly vented?

If water heaters are located where a leak will cause damage, it's a good idea to unstall them within a pan, with a drain pipe attached to pan bottom amd run to a drain or outside.