On Tue, 13 Dec 2005 21:42:57 +0000 someone who may be
wrote this:-

Are there any problems, or regulations concerning discharging water
via a trap from a washing machine into the soil-pipe?

Assuming the existing plumbing is a single pipe system, the branch
to the washing machine needs to comply with the recommendations
regarding gradients, pipe sizes, pipe lengths and depth of seal for
such a system. If it is a two pipe system these recommendations are
equally valid, but it is often easier to connect a washing machine
elsewhere in a two pipe system.

The connection to the soil pipe should not be within 200mm
(vertically) of where a toilet branch connects into the soil pipe.
One of the reasons for this you have pointed out:

(ie waste discharge from the toilet blocking any connection into the
soil pipe!)

The Council's Building Control branch should inspect new connections
to sewerage systems.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54