Illinois Plumbing Code Practice

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All cleanouts shall have a clearance of how many inches for the purpose of rodding?

  1. 12

  2. 15

  3. 18

  4. 22

The correct answer is: 18

The requirement for a clearance of 18 inches for cleanouts is established to ensure proper access for maintenance and rodding purposes. Cleanouts are crucial components in plumbing systems that allow for the removal of blockages and facilitate the inspection of drainage lines. A clearance of 18 inches provides enough space for the tools used in rodding to be maneuvered effectively without obstruction, promoting efficient and safe access to the plumbing system. This distance is also important to consider when planning the layout of plumbing systems, as it helps to prevent damage to surrounding structures and fixtures while allowing adequate working space.

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