Pecanfan wrote:

I've got a rather complicated soil pipe run to install and I'm at a bit of a
loss as to whether what I'm trying to do will even be possible. A picture's
worth a thousand words etc. etc. so here you go:-

http://www.pciq.co.uk/pics/soil.gif

BTW. If the main stack is not that far away, and it is vented, then you
won't need the air admitance valve on your new section.

The first problem is that as soon as the soil pipe leaves the building
through a 2ft thick brick wall, it needs to turn 90 degrees and head towards
the soil stack. Can I even put a 90 degree access bend directly against the
brickwork like this, or will it cause the adjoining soil pipe to be too far
away from the wall to attach the supporting clips?

I did this recently and found that the end of the elbow (or tee) needed
to start inside the wall to get the turn in the right place so that the
external pipe run can be clipped correctly.

Secondly, I'd like (if possible) to run my sink waste into this soil pipe,
to avoid the need for a second waste pipe to weave it's way around the w/c
etc. By my understanding this means I'll need some form of horizontal T
connector directly attaching to the pan. I'd then run a standard section of

You can get WC pan connectors designed to do exactly this:-

http://www.mcalpineplumbing.com/product_menu.htm

Thirdly, I gather the stub stack can just be attached via a 92.5 degree
access branch turned on it's side?

Yup - there is enough give to allow a 90 degree angle if required.

--
Cheers,

John.

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