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House Inspection Chambers
Our precast concrete House Inspection Chambers (HICs) are manufactured to BS EN 1917 and BS 5911 and comply with the recommendations within the Sewers for Adoption manual.
Made with a tongue and groove joint, our rectangular manholes can be sealed with either a sand and cement mortar or bitumen sealant and can be supplied complete with heavy duty cover slab.
Our HICs are an economical and versatile solution that meet the demands of any domestic drainage installation and provides access to the drainage system so that they can be cleaned, cleared or inspected.
For rectangular manholes installed at depths greater than 1.5m, we recommend the use of a concrete surround.
Chambers
Cover Slabs
| Product Code | Product Drawing | Access Hole (mm) | Size (mm) | Weight |
| HIC 1200 HDCS | 620 x 620 | 1200 x 750 | 291kg |
The 1200 x 750 HIC cover slab allows for the use of a variety of steel, ductile iron or composite access hole covers.
Advantages of precast rectangular manholes:
- Faster to build when compared to a traditional brick-built chamber
- Not subject to floatation unlike lighter options
- Reduced costs associated with in-situ construction and reuse of as-dug material
- Easy access to end-users requiring access to drainage system
- Available at short notice
