Illinois Plumbing Code Practice

A developed length of 2 feet in water service or distribution piping is defined as a dead end in the Illinois Plumbing Code. This specification is essential because stagnant water can cause problems such as contamination, odors, and bacterial growth, which can compromise water quality and health. By limiting dead ends to lengths not exceeding 2 feet, the code aims to minimize these risks and promote better water circulation within the plumbing system. The thresholds for dead ends are carefully considered; lengths shorter than 2 feet are generally deemed acceptable for continued flow, while longer lengths can lead to stagnant conditions. The choice of 2 feet reflects a balance between practical conduit lengths and maintaining fluidity in water flow.