Inspection chambers for twinwall systems

Inspection chambers for twinwall systems

Adoptable and non-adoptable inspection chambers to suit all UK twinwall systems, ultrarib and polysewer

Inspection chambers play an integral part in providing access to and ensuring the safety of underground drainage systems. This range of inspection chambers are designed to be compatible with all UK twinwall pipe systems and surface water systems. They can also be adapted to take structured wall drainage, such as Ultrarib, and other pipe systems.

This range is classed as non entry access and so is limited to 3 metre inverts in adoptable application as stipulated in (Sewers for Adoption 2013 Section B2.2-Access).

Why choose our inspection chambers?

Twinwall compatible

Designed to be compatible with all UK twinwall pipe systems and can be adapted to take ultrarib too.

Strong

Our chambers are manufactured using high strength polyethylene and can be installed in minimum granular surround.  

Watertight

Our chambers are water tested and can be supplied with seals to give a fully watertight chamber.

Interested to know more?

Speak to our Inspection chambers for twinwall systems experts to make sure you get the most efficient solution for your needs

Models

We supply two different types of models to suit your requirements:

Straight Channel:

An inspection chamber with a straight channel through the base.

Available in depths of 1m and 1.5m, with options for connection to twinwall pipe in the following sizes:

  • 150mm
  • 225mm
  • 300mm

Deep catchpit:

A 1 metre inspection chamber with a 500mm deep catchpit for silt and sand under the pipe work invert. This will give 250 litres of solids retention below the pipe work.

Available for connection to twinwall pipe in the following sizes:

  • 150mm
  • 225mm
  • 300mm

To view more details, click here to view our brochure.

 

Accessories

Both our models come with the option of 1, 1.5 or 2 metre access shaft extension/risers.

Access extension risers
These extension risers can be used to increase the invert above 1 metre. If above 1.2 metres then the access cover needs to be restricted to 350mm for safety, again stipulated in Sewers for adoption.

Access reducer cap
We can also supply a sealed cap to fit over the riser. This has a 350mm opening that will accomodate most access covers of this size.

Access covers
We supply a range of access covers, from Pedestrian Duty to D400 Heavy Duty.

Interested to know more?

Speak to our Inspection chambers for twinwall systems experts to make sure you get the most efficient solution for your needs

Useful information

So you know you need to install an inspection chamber but you have a few questions, such as what’s its actual purpose and what’s the difference between adoptable and non-adoptable inspection chambers.

To bring you up to speed, we’ve put together a useful guide that should answer any questions you may have. Click here to read it.