When submitting a Request for Information (RFI), what must be included on all drawings to prevent confusion?

Including a north arrow on all drawings is essential to prevent confusion because it provides a reference for orientation. The north arrow indicates the direction of true north, which is critical for determining how the layout of the plumbing system aligns with the physical structure and surrounding environment. This helps everyone involved—designers, contractors, and inspectors—understand how the drawing relates to the actual site.

Without a north arrow, there could be misinterpretations regarding the placement and installation of plumbing fixtures, piping runs, or any other related systems, potentially leading to costly errors and delays. By ensuring that all drawings include a north arrow, it becomes easier to coordinate work and maintain consistency throughout the project. This practice promotes clarity in communication and supports efficient project execution by allowing all stakeholders to share a common understanding of the layout in relation to the site.