Pipe

 the plumbing system illustrated in the image you sent.

Overall Structure:

The image depicts a vertical plumbing system commonly found in buildings, connecting various fixtures like toilets, sinks, and washing machines to the municipal sewage system.

Key Components:

1. Drain Line: This is the primary pipe running vertically. It receives wastewater from all the connected fixtures.

2. Traps: These are U-shaped sections in the drain lines beneath each fixture. They hold a water seal, preventing sewer gases from entering the building.

3. Vent Pipe: This pipe extends upward from the drain line and exits through the roof. It allows air pressure to equalize within the system, preventing siphoning of trap seals.

4. Municipal Sewage System: This is the underground network of pipes that carries wastewater away from the building.

How it Works:

* Wastewater Flow: When you use a fixture, wastewater flows through the drain line towards the municipal sewage system.

* Trap Seal Protection: The water in the trap creates a seal, preventing sewer gases from traveling back up the drain line and into your home.

* Vent Pipe Equalization: The vent pipe allows air to enter the system, maintaining proper air pressure and preventing the trap seals from being siphoned out.

Additional Notes:

* The image shows a simplified system. In reality, plumbing systems can be more complex, with additional branches and vents.

* Regular maintenance is crucial to ensure the proper functioning of plumbing systems. This includes checking trap seals, clearing clogs, and inspecting for leaks.

Let me know if you have any more questions or would like a deeper dive into any specific aspect of the system!