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Drainage & Piped Services Standard Specification
Version 2014-1
Plastics Deep Non Entry Inspection Chamber System for Below Ground Drainage
System Performance: Design of access chambers for below ground drainage type D.
System manufacturer: Polypipe Terrain or equal and approved
Bedding: Submit proposals.
Base: Integral with chamber.
Chamber: Plastics restricted access inspection shafts.
Surround: Submit proposals.
Collar: Submit proposals.
Seating: Submit proposals.
Cover: Integral, supplied with chamber. restricted access
Backfill: Submit proposals.
Execution: Installing plastics deep non entry access chambers for below ground drainage and Installing
access covers and frames to chambers for below ground drainage type D.
System Completion: Removal of debris and cleaning below ground drainage monitoring and control
systems type C; Water testing of manholes and inspection chambers for below ground drainage monitoring
and control systems type C; Testing of ancillary components in below ground drainage monitoring and
control systems type C; and Documentation type C.
System Performance
Design of access chambers for below ground drainage type D
Design: Complete the design of the access chamber system.
Standards: To BS EN 752 and in accordance with National Annex NA.
Products
Plastics restricted access inspection shafts
Manufacturer: Polypipe Terrain or equal and approved
Standards: To BS EN 13598-2.
Third party product certification: BBA Agreement certificate.
Material: Polypropylene.
Diameter: 450 mm.
Preformed bases: DN 110 main channel and DN 160 main channel.
Integral accessories: Access covers and frames and Raising pieces.
Execution
Installing plastics deep non entry access chambers for below ground drainage
Standards: To BS EN 752, and in accordance with relevant parts of the National Annex (NA) and In
accordance with relevant parts of Sewers for adoption, interim technical addendum clause 2.9 and figure
6.
Bedding: Submit proposals.
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McDonalds Restaurants Ltd
