Class A recycled water:
information for plumbers

This page provides information for plumbers connecting Class A recycled water to residential properties in new ‘purple pipe’ developments including Armstrong Creek and Torquay North.

Plumbers complete their work in accordance with Barwon Water’s conditions of connections.

Image shows a purple recycled water meter with lock-box, and an adjacent drinking water meter.

Barwon Water is responsible for both recycled water and drinking water meters in Class A residential developments.



Barwon Water is responsible for the installation of both the drinking water and recycled water meter assemblies.

The recycled water meter includes a ‘lock-box’ that must remain in place until the final plumbing inspection has been passed (see below).


Please note: these conditions may have changed since you last accessed this webpage. Changes are effective from 1 July 2015.

Plumbers are required to notify Barwon Water at the completion of each of three stages during construction.

  • Stage 1 (meter to dwelling): completion of pipework between the water meter and the building but before back-filling.
  • Stage 2 (rough-in): completion of pipework rough-in inside the building but before internal wall cladding (ie:plasterboard) is installed.
  • Stage 3 (final): after all plumbing work is complete but before the building is occupied and before any completion certificate has been lodged.

In all cases, Barwon Water (or its authorised representative) will inspect the plumbing works at stage 3. Additionally, Barwon Water may choose to inspect the works at stage 1 and/or stage 2. This will be at our discretion and we will notify the plumber if these additional inspections are required. 

Use the link below to notify Barwon Water at each stage.

  Class A recycled water plumbing inspection notification



Plumbers connecting Class A recycled water must ensure that the following conditions are met.

No cross-connections of drinking water and recycled water.

Recycled water is only to be connected to toilets and garden taps (front and rear).

Purple pipes must be used for recycled water (black pipes with purple stripes do not comply).

Below ground, minimum horizontal spacing between recycled and drinking water pipes is 300 mm.

Above ground, minimum spacing between recycled and drinking water pipes is 100 mm.

Within the dwelling, any crossing over of recycled water and drinking water pipes must be kept to a minimum.

All buried recycled water pipes must be identified by tape running along the top of the pipe, attached every 3 metres. The tape must include the warning: “reclaimed or recycled water: do not drink”

External recycled water taps must be purple, have a removable handle, a ⅝-inch inlet thread and a standard warning sign.

External drinking water taps must be fitted with a hose connection vacuum breaker.



Commercial properties

At a minimum, commercial properties must comply with the same conditions as domestic connections. However, Barwon Water is responsible for the plumbing inspections (not the Victorian Building Authority).

Barwon Water may impose extra conditions depending on the intended use of the property. Any extra conditions will be determined during the application process.