Definition of soil stack in English:

soil stack

Syllabification: soil stack

noun

  • The pipe that takes all the waste water from the upstairs plumbing system of a building.
    More example sentences
    • If after taking the above steps the sluggish performance persists, you may have an obstruction in the vent pipe that exits through your roof or somewhere in the soil stack.
    • In the space at the back of our stairs we found a small room, a small room that contained the soil stack, into which the offending waste pipe terminated.
    • The soil stack will dictate the position of the toilet.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody