Final answer:
A final water heater inspection should be made after disinfection and storage of the water in storage tanks.
Step-by-step explanation:
A final water heater inspection shall be made after disinfection and storage of the water.
After the water is disinfected and stored in storage tanks, it is ready for distribution to homes, businesses, and other water users.
Inspecting the water heater at this stage ensures that the stored water is safe and clean for use.