Definition of soil stack in English:

soil stack


  • The pipe that takes all the waste water from the upstairs plumbing system of a building.

    • ‘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 connector to the earthenware soil stack is often made of plastic.’
    • ‘The soil stack will dictate the position of the toilet.’
    • ‘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.’