What is the maximum allowed distance for a sink to be from a vent?

The maximum allowed distance for a sink to be from a vent is 5 feet, which is consistent with standard plumbing codes. Vents are essential in a plumbing system as they allow air to enter the drainage system, preventing vacuum that could impede the flow of wastewater. By keeping the distance to the vent within this specified limit, it ensures that the sink has adequate drainage and that potential odors or sewer gases do not escape into the living space.

This 5-foot limitation also helps to maintain the effectiveness of the venting system, as longer distances can create pressure changes that could lead to problems like slow drains or gurgling sounds when water flows through the sink. Adhering to these guidelines is crucial for the overall functionality and safety of plumbing installations.