According to InterNACHI Standards, what are inspectors required to do with all toilets?

Inspectors are required to flush all toilets as part of their standard procedures. This action helps to verify that the toilet functions properly, ensuring that it operates as intended during a home inspection. Flushing the toilet allows the inspector to observe the flush mechanism's efficiency and check for any immediate issues, such as clogs or malfunctions.

Additionally, flushing helps highlight any potential problems related to water flow and drainage. By assessing the toilet in this way, inspectors can provide a more accurate evaluation of the plumbing system's condition. The process serves not only to test functionality but also to identify any maintenance needs that may be necessary for the future.