What type of vent is specifically designed to equalize pressure in waste systems?

A circuit vent is specifically designed to equalize pressure in waste systems. It plays a crucial role in maintaining the flow of wastewater and helps to prevent siphoning and backpressure within the drainage system. By allowing air to move freely, it creates a balance of pressure that is necessary for proper drainage and waste removal. This design is particularly valuable in systems where multiple fixtures are connected to the same drainage line, as it helps to facilitate smooth operation without the risk of traps being contaminated or drainage issues arising.

The function of a circuit vent ensures that air can enter the drainage system, allowing waste to flow effectively from the fixtures to the main sewer line. This system enhances the efficiency of waste movement while also reducing the likelihood of obstruction or vacuum formation that could compromise the plumbing system's integrity.