All recycled water plumbing and fixtures should comply with AS/NZS3500.1 plumbing and drainage – water services. In summary this standard requires that:
- A backflow prevention device be fitted at the drinking water meter.
- There should be NO cross-connection between drinking and recycled water services.
- All recycled water piping should be coloured purple or have appropriate and durable purple sleeving, netting or spirally wrapped tape for clear identification.
- All buried pipes should be marked with longitudinal running marking tape clearly displaying: RECYCLED OR RECLAIMED-WATER-DO NOT DRINK.
- All external taps should be clearly marked with a warning sign, be fitted with a removal handle and be coloured purple.
- Hunter Water should be notified of any planned changes or modifications to existing recycled water infrastructure.
