It is good practice to inspect the plumbing fixtures at the ______ point in the dwelling.

Inspecting the plumbing fixtures at the highest point in the dwelling is considered good practice because this location can provide valuable insights into the plumbing system's overall condition and performance. When you assess the highest plumbing fixtures, you can evaluate how water drains and whether there are any signs of leaks or clogs that may not be evident at lower points.

Additionally, inspecting at this elevation helps identify potential issues related to water pressure and flow. If water can effectively reach and drain from the highest fixtures, it is more likely that the system is functioning correctly throughout the rest of the house.

This approach aids in spotting airlocks and can reveal problems with venting that could affect the entire plumbing system. Therefore, starting the inspection at the highest point provides a comprehensive overview and ensures that any issues affecting the upper levels of the home can be addressed effectively.