August 10, 2026 · HOME SERVICE EDITION

Plumbing Help Center

PLUMBING DESK

What size should plumbing pipes be?

Updated 2026-08-07 00:00 · Plumbing & San Clemente Knowledge Base

A useful answer to what size should plumbing pipes be starts by identifying the affected fixture or line and documenting what changed. From there, compare repair versus replacement, likely downtime, and long-term maintenance, because the best option depends on the home, materials, access, and local requirements.