Understanding Soil Pipe in Plumbing Systems
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Questions and Answers

What is the purpose of extending at least one vertical stack in the plumbing system through the roof?

  • To increase water pressure in the plumbing system
  • To reduce the size of the soil pipe
  • To prevent clogging of the house drain
  • To ventilate and dispose off the sewer gas above the roof (correct)
  • What is the minimum diameter for the soil stack or stack vent extended above the roof?

  • 50 mm (2")
  • 100 mm (4")
  • 35 mm (1.5")
  • 75 mm (3") (correct)
  • What term is used for a soil pipe installed horizontally?

  • Soil Branch (correct)
  • Waste Pipe
  • Vent Stack
  • Soil Stack
  • What is the purpose of extending the vent stack through the roof of the building?

    <p>Ventilate and dispose off sewer gas (C)</p> Signup and view all the answers

    According to the National Plumbing Code, what is the required length for extending the vent stack above the roof when not used for protection from weather elements?

    <p>No less than 2.0 meters (C)</p> Signup and view all the answers

    What is the term for a soil pipe that carries human waste coming from the water closet?

    <p>Soil Stack (C)</p> Signup and view all the answers

    What is the primary purpose of extending at least one vertical stack in the plumbing system through the roof?

    <p>To ventilate and dispose off the sewer gas above the roof (B)</p> Signup and view all the answers

    What is the minimum diameter for the soil stack or stack vent extended above the roof, according to the National Plumbing Code?

    <p>75 mm (3 inches) (C)</p> Signup and view all the answers

    What is the term used for a soil pipe that does not carry human waste coming from the water closet?

    <p>Waste Pipe (B)</p> Signup and view all the answers

    What is the required length for extending the vent stack above the roof when not used for protection from weather elements, according to the National Plumbing Code?

    <p>2.0 meters (D)</p> Signup and view all the answers

    Flashcards

    Purpose of Extending Stack

    To ventilate and dispose off sewer gas above the roof.

    Minimum Diameter for Soil Stack

    The minimum diameter for a soil stack or vent extended above the roof is 75 mm (3 inches).

    Soil Branch

    A soil pipe that is installed horizontally.

    Vent Stack Purpose

    To ventilate and dispose off sewer gas from the building.

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    Vent Stack Length Requirement

    No less than 2.0 meters when not used for weather protection according to the National Plumbing Code.

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    Soil Stack Definition

    A soil pipe that carries human waste coming from the water closet.

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    Waste Pipe Definition

    A soil pipe that does not carry human waste from the water closet.

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    Soil vs Waste Pipe

    Soil pipes carry human waste; waste pipes carry other materials.

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    Sewer Gas Disposal

    Extending the vertical stack through the roof allows for effective sewer gas ventilation.

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    National Plumbing Code

    Sets requirements for plumbing installations, including stack dimensions and lengths.

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