Illustrate eleven plumbing symbols.

1. Faucet symbol: a simple drawing of a faucet with a handle and spout
2. Pipe symbol: a straight line with two perpendicular lines coming off of it to represent a pipe
3. Toilet symbol: a drawing of a toilet bowl with a seat and tank
4. Sink symbol: a rectangle with a small circle inside to represent a sink basin
5. Shower symbol: a drawing of a shower head with water droplets coming out
6. Bathtub symbol: a rectangular shape with a curved end to represent a bathtub
7. Water heater symbol: a drawing of a tank with pipes coming out of it to represent a water heater
8. Drain symbol: a drawing of a circle with arrows pointing downward to represent a drain
9. Valve symbol: a drawing of a circle with a line through it to represent a valve
10. Trap symbol: a drawing of a U-shaped pipe to represent a trap
11. Water meter symbol: a drawing of a meter with numbers on it to represent a water meter.

1. Drain
- Image: Circle with a small line protruding downwards.

2. Water Closet
- Image: U-shaped symbol with a small circle attached to the bottom.

3. Sink
- Image: Rectangle with a smaller rectangle inside, representing the sink basin.

4. Lavatory
- Image: Sink with a handle and spout.

5. Tub
- Image: Rectangle with a curved top, representing the tub's edge.

6. Shower
- Image: Vertical rectangle with a curved top, representing the shower head.

7. Washing Machine
- Image: Circle with a smaller circle inside, representing the drum.

8. Dishwasher
- Image: Rectangle with multiple wavy lines, representing the water jets.

9. Water Heater
- Image: Cylinder with a flame symbol below.

10. Gas Valve
- Image: Circle with a diagonal line and a perpendicular line inside.

11. Water Supply Valve
- Image: Circle with a square inside.