Inspection Chambers & Rodding Eyes
The access point on a buried drain. An inspection chamber lets the run be inspected, rodded and jetted from ground level without excavation, and is required at junctions, changes of direction and changes of gradient.
Also searched as: inspection chamber, manhole, IC, rodding eye, riser, chamber base, access chamber
Chamber build-up
A chamber is assembled from a moulded base with the inlet and outlet channels formed in, one or more risers cut to suit the cover level, and a cover and frame selected for the loading. Sealed covers are used where the chamber is inside a building or in a location where odour would be a problem.
Where chambers are required
At every junction of drains, at significant changes of direction or gradient, at the head of each run, and at intervals along straight runs so that no length is beyond rodding reach. Confirm maximum spacing with the approving authority in the emirate.
Rodding eyes
A rodding eye is the lighter alternative for the end of a short branch — a sealed access brought to the surface on a long-radius bend, allowing that branch to be rodded without building a full chamber.