How does the code define “Fixture Count”?

The definition of “Fixture Count” as stated in the National Plumbing Code of Canada refers to the total number of plumbing fixtures served by the plumbing system. This is a critical measure because it provides a basis for determining several key aspects of plumbing design, including the sizing of pipes, venting requirements, and the capacity of other system components.

Understanding fixture count is essential for ensuring that the plumbing system is adequately designed to handle the expected usage, thus meeting building requirements and regulations. It serves as a fundamental element for assessing drainage and venting demands within a residential or commercial plumbing system. Each fixture contributes to the overall load that the plumbing system must accommodate, making it paramount for compliance with local codes and for the efficient functioning of the plumbing system.

The other choices focus on different aspects of plumbing but do not accurately convey what fixture count specifically entails. For instance, the maximum number of connections refers more to system limits rather than just the quantity of fixtures, while information about venting requirements and water usage pertains to specific operational needs rather than the broad definition of fixture count itself.