How do plumbing fixtures connect to the drainage system?

Plumbing fixtures connect to the drainage system primarily through the use of traps and venting. Traps are essential components designed to hold a small amount of water, which creates a seal that prevents sewer gases from entering the living space. This water barrier is vital for maintaining indoor air quality and ensuring a safe environment.

Additionally, venting plays a crucial role in the drainage system. Vent pipes allow air to enter the plumbing system, which helps to equalize pressure and ensure that wastewater can flow freely to the drainage system without creating a vacuum. Venting also assists in preventing water from being siphoned out of traps, which could lead to sewer gas intrusion.

This combination of traps and venting ensures that plumbing fixtures function correctly, efficiently moving wastewater away while maintaining the integrity and safety of the plumbing system.