Installation Process

ROMOLD DN1000 manhole chambers, and DN625 maintenance chambers, have clear benefits when it comes to installation and function.

Functionally, ROMOLD chambers are inherently sealed against water ingress, are practically immune to corrosion from acidic soils, salt water environments, or hydrogen sulphide gases, and also have extremely low wear rates reducing the risk of erosion over time.

Quite simply, ROMOLD manhole chambers are truly built to stand the test of time and are an ideal solution for New Zealand’s wastewater and stormwater infrastructure.

From an installation perspective, ROMOLD manhole chambers cannot be beaten.

Pre-fabricated manhole bases remove the need for core drilling, sealing, benching and plastering. Their moulded plastic channels negate the requirement for ceramics, whilst offering an exceptionally low friction coefficient. Confined space entry is near to eliminated with ROMOLD manhole chambers, with the only entry requirements being to fit and remove test plugs for line testing.

The low weight of the system, and the fact that it is modular, make for an extremely easy to handle solution. ROMOLD manholes can quite literally be lifted into place, or even carried to site. This can be a significant advantage for hard to access sites, not to mention providing clear Health & Safety benefits.

The speed of install for ROMOLD manhole chambers is often the critical deciding factor for this technology. A 2m deep manhole chamber can be set up and assembled within 45 minutes. A game changer for many work sites!

The installation process is extremely simple and requires no formal training. With each manhole order an installation manual is included, providing step-by-step instructions for the assembly process and backfill requirements.

Key points from this process include:

Lay a 10cm deep base with compacted AP20 material.
Set the base level to ensure the grade in the channel is correct.
Split pipe angle deflections in the sockets evenly between inlet and outlet sockets.
Use the assembly string provided along with pipe lube on the seals when assembling components together.
Use AP20 material for backfill and achieve good compaction in small lifts. This backfill is a key component of the assembly and will ensure a long service life for the asset.

Australasia Moulding Ltd is here to support successful applications of ROMOLD manhole chambers and we welcome your call should there be any questions regarding the assembly process.

The installation manuals supplied with each order (and linked below) include all the information required to install a chamber without fault.