A surprising number of the sewer problems we dig out across northern New Jersey trace back to one product: Orangeburg pipe. If your home was built between 1945 and about 1972, there is a real chance the pipe carrying wastewater from your house to the street is made of it.
What Orangeburg pipe is
Orangeburg, also called bituminized fiber pipe, is basically layers of wood pulp bound together with hot coal tar pitch. After World War II, cast iron was scarce and expensive, so builders across the country ran these tar and paper pipes as sewer laterals until PVC took over in the early 1970s. It was marketed as a 50 year pipe. In the real world, many start failing at around 30, and every Orangeburg line still in the ground today is decades past that mark.
How it fails
Orangeburg absorbs moisture and slowly loses its shape. The round pipe squeezes into an egg shape, the bottom goes soft, and tree roots push through the seams looking for water. What you notice above ground is slow drains, repeat backups, gurgling, soggy or sunken spots in the yard, and a line that needs to be snaked over and over. Each snaking buys time, but it also chews up pipe that is already breaking down.
How to know what you have
A camera inspection settles it. If the camera shows a deformed, egg shaped line with blistered walls, that is Orangeburg, and lining is usually not an option because the pipe has lost its structure. The fix is replacement.
What replacement looks like
We dig out the old lateral, remove it, set new PVC at the proper pitch on a good bed, tie it into the main or the septic tank, then backfill, compact, and restore the grade. Most residential laterals are a one to two day job, and when we leave, the yard is graded and clean. If your line backs up at the worst possible time, we also answer around the clock.
If your house dates to the 1940s through early 1970s and the sewer has never been replaced, it is worth a camera look before it becomes a 2 a.m. emergency. Call us at 862-268-2510 and we will tell you straight what you have and what it will take.
Sources: InterNACHI sewer scope inspection standards (identifying Orangeburg pipe), Orangeburg sewer piping guidance (City of Ann Arbor).