Part 6 – Water Supply
6.8 Rider Mains
Rider mains shall be 63 mm OD MDPE. Table 6.3 below sets out the maximum number of domestic connections permitted to be served by a rider mains.
Table 6.3 – Rider Mains: Service Connections
Maximum number of dwelling units (service connections)
| Medium-Pressure areas¹ | Low pressure areas² | ||
| One-end Supply | Two-end Supply | One-end Supply | Two-end Supply |
| 15 | 30 | 7 | 15 |
Notes:
|
|||
Rider mains with supply from only one end shall have a flushing valve at the terminal end.
In general 150 mm diameter mains will give adequate fire flows in the urban areas. Council may take the opportunity to increase the water main size to allow for future growth beyond the development being considered. Separate pressure zones are discouraged as this may compromise water quality and fire flows.
