The red coded lines indicate sanitary sewer lines and the circles indicate manholes into which they discharge. Blue indicates Stormwater and watermains.Manholes cannot be installed, removed or connected into unless council consent is obtained or approval from a responsible authority is given (e.g Watercare). Drainage NZ can assist you in the design, application and consenting stages including manhole installations and involved drainage.

Further services include:

• Manhole repairs
• New private connections onto existing manholes
• Manhole Re-channelling
• Manhole maintenance including flushing and plastering
• New manhole installations
• Horizontal directional Drilling from one manhole to another (new to existing or vice versa).

Most Manhole work (unless classified private) is considered as Public work. In Auckland drainlayers must be Auckland city and Watercare registered (ALK approved or Manukau city approved) to be allowed to work on public systems. Both of which Drainage NZ are. We carry all the required certifications and qualifications to accommodate an size public work, for more information about drainage for councils, please visit our Council Drainage page.