Soil stack

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soil stack

[′sȯil ‚stak]
(building construction)
The main vertical pipe into which flows the waste water from the soil pipes in a structure.

Soil stack

The main vertical pipe which receives waste water from all fixtures in a building.

soil stack

soil stack
A vertical soil pipe carrying the discharge from toilet fixtures.
References in periodicals archive ?
The vent stack (4) is the upper extension of the soil stack.