- a pipe carrying wastes from toilets and sometimes from waste pipes.Compare waste pipe(def 2).
Origin of soil pipe
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for soil pipe
Between the soil-pipe and the fixtures a trap must be provided with a water-seal of about an inch.
Soil-pipe fittings can be had from stock almost to suit the conditions.Elements of Plumbing
The bottom of the pan is attached to the soil-pipe which discharges into the drain.Cooley's Practical Receipts, Volume II
The nearer to the soil-pipe that the fixtures can be arranged the better.
This soil-pipe weighs about ten pounds per foot and is almost always four inches inside diameter.
- a pipe that conveys sewage or waste water from a toilet, etc, to a soil drain or sewer