Aunty M, I mostly agree with what your saying.But where do you come up with the every 2 years for septic pumping.I can see it if its a defective system.But then it should really be repaired or replaced.
I'm not real knowledgable on septics.But I've always been told 5-7 years for a normal household.And a friend of my wifes who's husband does septic designs,says the people that recomend pumping that often are just trying to make extra money.
I agree with septic inspections,flow,and leak tests.but why place an undo burden on people,by making them pump their systems when its not necessary?