BigWallop wrote:


"Mike Richardson" wrote in message
.. .
I had a look at the UK.DIY FAQs and there doesn't seem to be anything on
drainage, particularly soil pipes and inspection chambers. Can anyone
point
me to anything useful? If not I'll try and describe my problem/query
here.

Thanks
Mike


Go for a description Mike, then we may be able to point you to a specific
site that will help you more.

OK, thanx. Its not really a problem, just finding out what to do.

We are moving kichen and bathroom, so the drains need rerouting. We've been
let down by the guy who was doing the work (delay, delay, sorry, family
problem, .... can't do so I thought sod it, I'll do it myself - I've now
got a nice set of trenches and some exposed clayware soil pipe.

One part is the kitchen waste pipe, from the kitchen back wall to where it
meets the existing drain. This goes 2-3m in one direction, turns 90
degrees, then 3-4m to the existing drain. Later, we may have an upstairs
bathroom, in which case the soil pipe will drop to where the waste pipe
leaves the kitchen. For this reason we are going to put in 110mm pipe so
that we don't have to redo it again

The question is, how do I do the 90 degree bend. I've got the Hunters
catalog and downloaded their specification docs (we're using PVC
throughout) but I can't see an obvious fitting for the 90 degree bend,
other than a full-size 5-to-1 inspection chamber, which seems a bit
overkill. Also, the drop from the kitchen to the existing drain is only
just enough, and the 5-to-1 has a 50mm (ish) drop between the pipe in and
the pipe out, which I want to avoid if possible.

One possibility I though was to use a channel bend and build it into a
brick/concrete chamber. This has the added advantage of being stronger -
it's pretty close to where a vehicle wheel will go heading into the garage.

So, is there any online info on this and what the regulations are, or can
someone point me at a how-to book that the (hopefully informed!) layman can
follow?

Thanx
Mike