The home inspector shall observe:

• Interior water supply and distribution system including:
  1. piping materials, including supports and insulation.
  2. fixtures and faucets.
  3. functional flow.
  4. leaks.
  5. cross connections.
     
     
• Interior drain, waste, and vent systems, including:
  1. traps, drains, waste, and vent piping supports and pipe insulation.
  2. leaks.
  3. functional drainage.

• Hot water systems including:
  1. Water heating equipment
  2. Normal operating controls
  3. Automatic safety controls
  4. Chimneys, flues, and vents
     
     
• Fuel storage and distribution systems including:
  1. Interior fuel-storage equipment, supply piping, venting, and supports.
  2. Leaks.
     
     
• Sump pumps

The home inspector shall also:

• Describe:
  1. water supply and distribution piping and materials.
  2. Drain, waste, and vent pipe materials.
  3. water heating equipment.
  4. location of main water shut off device.
• Operate all plumbing fixtures, including their faucets and all exterior faucets attached to the house, except where the flow end of the faucet is connected to an appliance.