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.

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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.

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The soil stack should be located on an inside partition.

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