Rodding eye (rodding point)

Capped access point allowing drain rods to be pushed into a pipe for clearing blockages.

A rodding eye is a small, capped access fitting installed on a drain run that allows engineers to insert drain rods, jetting hoses or CCTV cameras without requiring a full inspection chamber. It is typically used where a chamber would be impractical, such as at the head of a branch, at the base of a soil stack or at a tight transition in pipework. UK Building Regulations Part H1 requires rodding access to every length of drain that cannot be cleared from an existing chamber. The cap is usually screw-on or bolt-down and must be airtight to prevent odours escaping internally. While rodding eyes are useful for routine clearance, they do not allow visual inspection of the chamber base and so are not a substitute for full access at major junctions.