Case Study SmartPit™ PE Manhole

March 2018
Hunter Water
Bonnells Bay

Corroded concrete manholes are a common problem in authority infrastructure systems. Concrete corrosion can occur internally from Hydrogen Sulfide gasses or externally from aggressive soil conditions.

Polyethylene materials are well recognized and used to protect sewer, leachate and stormwater drainage systems and significantly extend asset life.

The SMARTPIT™ polyethylene manhole available from Smartstream Technology is an Australian owned and manufactured solution available across Australia and New Zealand.

Hunter Water have recently replaced five corroded manholes downstream from a rising main discharge manhole at Bonnells Bay with SMARTPIT™ PE Manholes.

Rising main discharge manholes are a common area where protection against internal corrosion is required with polyethylene linings required for discharge and downstream manholes in many areas.

The SMARTPIT™ PE Manholes were supplied to site complete, fully welded and pre benched. The SMARTPIT™ were supplied with pipe connections to suit a variety of pipeline materials and sizes at the angle and grade required by the Hunter Water installation team.

Resistant to corrosion from internal gas attack, aggressive soil conditions and easy to install the Smartstream Technology system provides authorities
with reduced risk of future leaks over traditional structures and provides the authority with reduced installation and infrastructure costs.