According to plumbing codes, how should the last support for a 1-inch pipe be secured relative to its length?

The correct approach to securing the last support for a 1-inch pipe, as stipulated by plumbing codes, is to position it no more than 36 inches from the end of the pipe. This requirement is designed to ensure proper support and stability for the piping system, preventing excessive movement or sagging that could lead to stress or damage.

By maintaining this maximum distance, the integrity of the piping system is upheld. Proper support is crucial, especially for horizontal runs, to minimize stress on the joints and connections and to ensure that any potential issues, such as sagging or bending, are avoided. This regulation helps to maintain the overall safety and functionality of the plumbing system, reducing the risk of leaks or breakage due to inadequate support.

In plumbing practice, spacing and support are critical components to adhere to for ensuring system longevity and performance.