Piping containing reclaimed water should be painted what color?

Piping containing reclaimed water should be painted purple to indicate its specific use. The purple color is widely recognized as a standard for reclaimed or recycled water systems. This color coding is crucial for preventing cross-connection with potable water systems and ensuring that the public and workers can easily identify reclaimed water systems, promoting safety and compliance with regulations.

By using purple for reclaimed water piping, it reduces the risk of accidental misuse, such as using reclaimed water for drinking or irrigation of crops that will be consumed. This practice aligns with industry standards, which aim to protect public health and environmental safety. The adoption of a widely accepted color code helps in effective communication of water usage throughout a community, taking into account the unique applications of reclaimed water.