a diagram showing the plumbing system of a four-room house which
includes fixtures for the kitchen, bathroom, and laundry.
Submit two pieces of iron pipe that you have threaded and connected
with proper fitting.
Submit a repaired plastic (PVC), iron, or copper pipe, and tell how to
repair all three.
Demonstrate ability to repair a leaky sink faucet and replace or
repair toilet flush mechanisms.
Describe the proper drainage system of the house in #1 and explain the
use of traps and vents.
a knowledge of the ordinary hot and cold water system of a house and
explain how to make the system safe from freezing if the house has to
be left without heat during the winter.
Diagram at least one type of passive water heating system, such as the
use of solar energy.