Sharp turn in to inspection chamber advise

[PSC88]

Hi we have part of our drainage design which is currently showing a sharp turn into an inspection chamber followed by a long straight  run of approx 10m

 

i have attached the images below

 

Any thoughts on how this can be over come? Or whether it poses risks of blockage? It’s an upstairs toilet and en-suite bathroom (2 diffeerenr connections in with one connection out

 

 

[Oz07]

Why? That is terrible. Is it so the pipe is joined outside the building? I've had pipes join under a building before probably isn't best practice but when you see something like this it hurts your eyes. In my case the stub stack coming up might have been accessible to rod a blockage thru so maybe thats why was ok. 

 

If you do want it going into that manhole it can be done but just take a long swing into the 90 deg connection of the manhole. You want to be forming a slow bend in connections so the waste is already flowing around. 

[Mr Punter]

That is dreadful.  You need to use the main flow of the chamber for at least one junction.  Use a smaller IC, add 45s to the main inlet and outlet.  Move the chamber down and right.  If you want I can do a sketch.

Edited 1 hour ago by Mr Punter

[PSC88]

Yes it’s exactly to make sure we have the pipe join outside of the building..

 

@Mr Punter any help/sketches would be much appreciated