Here is a basic plumbing diagram for a toilet and sink in a residential bathroom:
+------------------------------------+
| Main Drain |
+------------------------------------+
|
|
+------------------------------------+
| Toilet Drain |
+------------------------------------+
|
|
+------------------------------------+
| Sink Drain |
+------------------------------------+
|
|
+------------------------------------+
| P-Trap (for Sink) |
+------------------------------------+
|
|
+------------------------------------+
| Vent Pipe |
+------------------------------------+
In this diagram, the main drain is the large pipe that leads from the bottom of the building and connects to the public sewer or septic system. The toilet drain is the pipe that connects the toilet to the main drain, and the sink drain is the pipe that connects the sink to the main drain.
The P-trap is a curved section of pipe that traps a small amount of water, which prevents sewer gas from entering the room through the drain. The vent pipe allows air to enter the plumbing system, which helps to prevent suction and allows waste to flow more easily. It also helps to vent any odors or gases that might be present in the plumbing system.
Please note that this is a simplified diagram and the actual plumbing setup may vary depending on the specific building and local building codes. If you have any concerns or questions about your plumbing system, it’s best to consult a licensed plumber.
