Most codes require nonpotable water piping to be what color as to visually distinguish it from potable water lines?

Name: Most codes require nonpotable water piping to be what color as to visually distinguish it from potable water lines?
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Quizplus · Accepted Answer

Purple is commonly used to identify nonpotable water piping, as per many codes and standards, to ensure it is easily distinguishable from potable water lines and prevent cross-contamination.

Most Codes Require Nonpotable Water Piping to Be What Color