If you're a plumber, S.F.D.H. does not stand for Santa Fe Department of Health, or State Farm Division of Housing, or even Stephen Foster Ditty Holder. If you're a plumber, S.F.D.H. stands for Sh*t Flows Down Hill - words to live by, and all a plumber really needs to know.
I mention this because we have been dealing with a slow draining sewer line for the past few months, and maybe -just maybe - we have finally got the problem solved.
As you might assume with a name like the Boggy Thicket, we sit on land with a very high water table - land that shifts with some regularity. After almost 50 years, those shifts had played hob with our sewer pipe. The pipe had buckled in several places, squeezed almost flat, and what should have been a straight pipe with a slight drop from the house to the septic tank looked more like the track of a roller coaster.
We had expected to find roots causing problems, and we found a few, but the main culprit seems to have been the earth itself. The original installation worked well for 40-plus years. The repair doesn't have to last nearly that long to outlive me.