What is the maximum allowable distance for the changeover of a vent when relocating a sink?

The maximum allowable distance for the changeover of a vent when relocating a sink is set at 5 feet. This regulation is established to ensure proper air circulation within the plumbing system, which helps to maintain its efficiency and effectiveness. Vents are crucial for allowing air to enter the plumbing system, preventing the vacuum effect that can lead to slow drainage or sewer gases entering the home.

When moving a sink, keeping the vent changeover within 5 feet allows for sufficient air flow and minimizes the risk of drainage issues. If the distance were allowed to be greater, it could potentially compromise the venting system’s performance. This distance aligns with plumbing codes and standards that have been developed to promote good practices in kitchen design and ensure that appliances function properly.