Illinois Plumbing Code Practice

The correct answer highlights the specific requirement set forth in the Illinois Plumbing Code for the installation of plastic piping systems. While options might seem viable at first glance, the use of metal clamps and screws of corrosion-resistant material is recognized as a permissible method for securing joints in certain contexts.

In plumbing, durable connections are crucial to maintaining the integrity of a system, and the mention of corrosion-resistant materials emphasizes the need to prevent deterioration over time, which is common in many plumbing applications due to moisture exposure. However, it’s important to note that often plastic piping relies on specific types of joints such as solvent-welded or fusion-welded connections, which provide a secure, leak-proof bond, and approved insert fittings that are suitable for specific applications.

The focus on using corrosion-resistant materials highlights a broader concern within plumbing standards regarding materials that endure over the long term under various environmental conditions. Thus, it underlines the importance of both the quality of the joints and the materials utilized in creating reliable plumbing systems while adhering to code requirements.