1.2.25  Underground Drainage

The design for the below ground drainage shall comply with the requirement of "Sewers for Adoption" Fourth Edition, Part H of the Building Regulations BS8301 (Code of Practice for Building Drainage) and the requirements of the local Water Authority.

Prior to the surface water run-off entering the public system, it shall pass through a new suitable sized bypass oil/petrol interceptor. All gully gratings are to be of stainless steel, screw fixed in position.