Rhode Island Journeyman Plumber Practice Exam 2026 - Free Journeyman Plumber Practice Questions and Study Guide

The minimum slope for drainage pipes according to the Rhode Island Plumbing Code is indeed 1/4 inch per foot. This slope is crucial for ensuring proper drainage and preventing issues such as clogs and backups. A slope of 1/4 inch per foot allows for adequate flow of water and waste through the pipes by utilizing gravity effectively. It facilitates the movement of liquids without allowing solids to settle, thus promoting a smooth and efficient drainage system. Adhering to this minimum slope is essential for maintaining the longevity and functionality of drainage systems in plumbing installations.