Water Supply & DistributionQuestion 7 of 360
You are supporting horizontal 1-inch copper water tube. Per the code hanger and support spacing table, what is the maximum horizontal spacing between supports for copper tube 1-1/2 inch and smaller?
a.12 feet
b.10 feet
c.6 feet
d.3 feet
Explanation
The support spacing table lists 6 feet as the maximum horizontal support spacing for copper water tube 1-1/2 inch and smaller. 12 feet applies to threaded steel pipe, 10 feet to larger copper, and 3 feet is closer to the spacing for CPVC of small diameter.
Law Reference: 2022 California Plumbing Code (CPC) Table 313.3Practice all 360 questions free — no signup required.
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