Tag: plumbing code 313.3

If you’re working on a commercial plumbing project or designing a system with large-diameter pipes, you’ve probably asked yourself: “Does Plumbing Code Table 313.3 apply to large diameter piping?” It’s a common point of confusion—even among experienced plumbers and engineers. Misinterpreting this table can lead to costly rework, failed inspections, or safety hazards. In this…