Diagram of siphonic water closet

A siphonic water closet is a type of toilet that uses a siphon mechanism to flush waste and water from the bowl. Here is a diagram of a siphonic water closet:

1. Bowl: The bowl is the main part of the toilet where waste is deposited. It is connected to the trapway and the tank.

2. Trapway: The trapway is a curved pipe that connects the bowl to the drain pipe. It helps to create a siphon effect when the toilet is flushed.

3. Tank: The tank holds the water that is used to flush the toilet. When the flush handle is pressed, water is released from the tank into the bowl.

4. Flush handle: The flush handle is used to activate the flushing mechanism. When pressed, it opens a valve in the tank to release water into the bowl.

5. Siphon tube: The siphon tube is a small pipe located inside the bowl that helps to create a siphon effect when the toilet is flushed. It allows water to flow quickly from the bowl into the trapway.

6. Siphon jet: The siphon jet is a small hole located near the bottom of the bowl that helps to create a strong suction force when the toilet is flushed. It helps to pull waste and water out of the bowl and into the trapway.

7. Water seal: The water seal is a small amount of water that sits in the bottom of the trapway. It helps to prevent sewer gases from entering the bathroom and also helps to create a seal for the siphon effect.

This diagram shows the basic components of a siphonic water closet and how they work together to flush waste and water from the toilet.

[Image of a siphonic water closet]

Key:

1. Bowl
2. Trap
3. Siphon jet
4. Vent hole
5. Flush valve
6. Water supply pipe
7. Waste pipe