soil stack

noun

, Plumbing.

1. a vertical soil pipe.

Word History and Origins

Origin of soil stack¹

First recorded in 1930–35

Example Sentences

This revealed which households required their pipelines to be tested, including one where both a sink and a soil stack were connected to the wrong pipes.

From Newsweek

There is a 4-inch soil stack for fixtures above and a 4-inch soil stack in the basement on the same line for a basement toilet.

From Project Gutenberg

The soil stack should be located on an inside partition.

From Project Gutenberg