Coal tar
Facing DOWN and hopefully covered with some type of liner to precent the lines from being filled with mud BUT will allow water to infiltrate
What kind of pipe? Is this area exposed to acid rain?
1/4" per foot
A pipe extended above the roof level is a soil pipe.
Soil pipes and waste pipes differ in their purpose and the type of waste they handle. A soil pipe is designed to carry human waste and toilet paper from toilets to the sewer system or septic tank. A waste pipe, on the other hand, is designed to carry other types of waste, such as water from sinks, showers, and washing machines. Waste pipes can also carry food waste and other debris from garbage disposals. Additionally, waste pipes are typically smaller in diameter than soil pipes.
No, that is why it is called a vent pipe not a soil line
Extra heavy soil pipe (CI) requires NO Coating
A soil pipe is a vertical pipe that is part of a plumbing system and is used to carry waste materials from toilets and other plumbing fixtures to the sewage system or septic tank. It works by using gravity to allow waste to flow downwards and out of the building. The soil pipe is connected to the toilet's drain and is designed to prevent the escape of foul odors and gases.
divide
divide
2.5 m
A soil pipe that removes fecal matter