What is the maximum distance a trap can be from a fixture?

The correct answer is based on plumbing code regulations which state that the maximum distance a trap can be from a fixture is typically 24 inches. This distance is critical to ensure proper drainage and to maintain water seal in the trap, preventing sewer gases from entering the living space.

When the trap is too far from the fixture, it can lead to several issues, including a decrease in the trap's effectiveness and increased risk of clogs. The purpose of the trap is to hold a small amount of water, which acts as a barrier against sewer gases while allowing waste to flow through. If the trap's distance exceeds the code limit, the water seal can be compromised, leading to unpleasant odors and potential health risks.

The options provided reflect various standards and practices, but plumbing codes tend to commonly accept 24 inches as the maximum distance for effectiveness and safety reasons. Understanding this measurement is essential for any plumbing technician to ensure that installations comply with regulations and function properly.