Sketch and label a piston-type flushing cistern.

1. Inlet valve: Allows water to enter the cistern from the water supply.
2. Float valve: Controls the water level in the cistern by shutting off the inlet valve when the water reaches a certain level.
3. Flush handle: Used to manually activate the flushing mechanism.
4. Flushing mechanism: Consists of a piston that is connected to the flush handle. When the handle is pressed, the piston moves up, forcing water out of the cistern and into the toilet bowl to flush waste.
5. Outlet pipe: Carries the flushed water from the cistern to the toilet bowl.
6. Overflow pipe: Prevents the cistern from overflowing by allowing excess water to drain out.

[Image of a piston-type flushing cistern]

Label:

- A - Water supply pipe
- B - Float valve
- C - Flush valve
- D - Piston
- E - Cylinder
- F - Overflow pipe
- G - Outlet pipe