Only a licensed plumber can connect you to a main. This helps ensure our water system and community remain safe. Before applying to connect, you will need to find a plumber and provide their details on the application form.
Your plumber will help design the connection in line with our standards.
Information for plumbers:
Standard connections
The following requirements apply to standard connections and should be read in conjunction with GWMWater standards.
Meters must:
not be located in pits
be located at least 300 mm from trafficable surfaces
have 150 mm clear space above, below and around the meter, with unrestricted access for GWMWater inspection and maintenance
be located between 300 mm and 2000 mm inside the lot boundary fronting the GWMWater water main
Where installed, backflow prevention ports require 300 mm clear space below.
Common tappings
Multiple-rated properties and properties with frontage via common property to the GWMWater main may utilise a common tapping via a meter manifold located within common property with a valve at the property boundary between the main and manifold.
The above standard connection requirements apply, with minimum spacing of 150 mm between meters, and a maximum of 6 water meters per manifold.
Table 1: Common tapping & meter manifold size guide.
No. of 25mm Connections | Minimum Manifold Diameter (DN mm) Larger diameter may be required; consult your plumber |
3 | 40 |
4 | 40 |
5 | 50 |
6 | 63 |
Sub-metering
Where there are more than 12 rated properties, GWMWater will consider proposals for sub-metering at GWMWater’s discretion on the basis of limiting congestion of water service pipes within the property. In such cases:
A parent meter is required. The service point is the parent meter; performance of GWMWater’s service obligations is measured at this location regardless of performance at the sub-meter.
The sizing of infrastructure must be supported by hydraulic calculations demonstrating the infrastructure will supply all sub-meters with sufficient flow as per the GWMWater Urban Customer Charter.
Sub-meters must be located outdoors, or within a radio-transparent cabinet and maintain GWMWater’s unrestricted access.
Sub-meters must not be in pits, must be located a minimum of 300 mm from trafficable surfaces, maintain 150 mm clear space above, below and around the meter, and must be located up to 1 m inside the sub-metered property, or within common property.
GWMWater own and maintain: the service connection pipe between the main and the parent meter; and the parent meter; and the sub-meters; and the metering communication devices. All other common infrastructure is owned and maintained by the property owner(s) and must be listed on the owners corporation schedule (if applicable).
