Rodding / Inspection Chamber Spacing

[BadgerBadger]

Just working through our drainage layout - we have separate foul and surface water (to soakaway) systems so seem to be having an ever-increasing number of inspection chambers.

 

I'm a little unsure on the minimum building regs requirements for rodding / access.  If I needed to have a ~90 deg change of direction, but there was a rodding eye or inspection chamber further along in both directions, would I need to provide another at the bend?

 

Thank you!

[Dave Jones]

change of direction normally needs a chamber. the size of the chamber is dictated by the depth. A good drainage design minimises chambers.