I've set out the main part of my drainage, being old clay to new inspection chamber to rest bend and soil pipe etc, with the gradient at 1 in 40. Two other connections on the chamber are to connect to two roddable bottle gullies (one under outside tap, other for rain water runoff - combined sewer). If these gullies are connected to the chamber mainly with straight pipe, the gradient will be a lot steeper than 1 in 40. Is this OK, or do I need to use some kind of rest bend from the gully so that the main run of pipe from gully to chamber is about 1 in 40 ? Of course, if the roddable feature is to be any use, then run needs to basically be straight. Thanks, Simon.
- posted
16 years ago