What type of water is indicated for use with purple PVC pipe?

• A. Potable Water
• B. Recycled Water
• C. Non-Potable Water
• D. Rainwater Harvesting

Answer: (C)

The correct answer is non-potable water, which is indicated for use with purple PVC pipe. Purple pipe is specifically used to convey recycled water that is not suitable for drinking, meaning it is classified as non-potable. This type of water can come from treated wastewater and is often utilized for irrigation, landscape maintenance, and other purposes where drinking quality water is not necessary.

Using purple PVC pipe helps to easily identify systems using non-potable water, thereby reducing the chance of cross-connection with potable water systems. This is critical for ensuring public health and safety, as it prevents the contamination of drinking water supplies. The other options do not align with the purpose of purple PVC pipe; for example, potable water would require standard plumbing colored pipes to meet health regulations, while rainwater harvesting systems may utilize different approaches for storage and conveyance that do not involve purple pipe.