Which items must be used when irrigating with reclaimed water?

Which items must be used when irrigating with reclaimed water?

• A. Green pipe, purple heads, purple valve box lids, signage around reclaimed pond
• B. Purple pipe, blue heads, purple valve box lids, signage around reclaimed pond
• C. Purple pipe, purple heads, purple valve box lids, signage around reclaimed pond
• D. Purple pipe, purple heads, purple valve box lids, signage around non-reclaimed pond

Answer: (D)

The main idea is to clearly identify reclaimed water as non-potable so there’s no chance it gets mistaken for drinking water. To do that, the system uses purple color coding across all components and visible signage at the site. Purple piping, purple sprinkler heads, and purple valve box lids are used because the color itself signals non-potable water and helps workers and the public distinguish the reclaimed system from potable water. Signage around the reclaimed-water site communicates the non-potable status and provides warnings to prevent accidental cross-connection or consumption. This combination directly supports safety and regulatory compliance by making the entire system unmistakable. Other color schemes or misplaced signage can create confusion or fail to meet standard marking requirements, increasing the risk of misuse.

The main idea is to clearly identify reclaimed water as non-potable so there’s no chance it gets mistaken for drinking water. To do that, the system uses purple color coding across all components and visible signage at the site.

Purple piping, purple sprinkler heads, and purple valve box lids are used because the color itself signals non-potable water and helps workers and the public distinguish the reclaimed system from potable water. Signage around the reclaimed-water site communicates the non-potable status and provides warnings to prevent accidental cross-connection or consumption. This combination directly supports safety and regulatory compliance by making the entire system unmistakable.

Other color schemes or misplaced signage can create confusion or fail to meet standard marking requirements, increasing the risk of misuse.