Macerator

[ppppenguin]

OK, if I end up doing the job it'll be 21.5mm overflow pipe all the way. The only snag is that I can't see any swept right angle bends. Only elbows and 45 degree bends.

http://www.screwfix.com/c/heating-plumbing/overflow-waste-system/cat831604#category=cat831604&productdiameter=21_5_mm

If I've got to go out through a wall and then turn to run along the wall I can't do it with 45 degree bends and elbows aren't recommended. So what do I do?

Also need to find a stop end (removeable) if I want a rodding point.