Water Supply & DistributionQuestion 8 of 360
A plumber is installing horizontal PEX tubing in a residence. What is the typical maximum horizontal support spacing required for PEX tubing?
a.10 feet
b.8 feet
c.6 feet
d.32 inches
Explanation
Because PEX is flexible, the code requires closer support, with a maximum horizontal spacing of about 32 inches for PEX tubing. Spacings of 6, 8, or 10 feet apply to rigid materials such as copper or steel and would allow excessive sag in PEX.
Law Reference: 2022 California Plumbing Code (CPC) Table 313.3Practice all 360 questions free — no signup required.
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