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Witchy
 
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Default Internal waste pipes, eg. Bath, shower, sink.

On 9 Dec 2003 12:19:31 GMT, wrote:

Isn't there an issue with waste water 'coming up' a lower waste pipe
if you plumb more than one together before they get to a big waste
pipe? E.g. if you pull the plug out on the bath with a full bath
won't the water come out of the shower waste into the bottom of the
shower as well as running down the drain?


I wondered about that too as I was joining the cloakroom sink into the
shower waste, but with the t-piece having a 90 degree corner on it we
don't get that water coming up the shower. I also put in a drop out of
the shower trap so that may be helping matters.

I was hoping to join two wastes in my re-plumbed bathroom (washbasin
and bath) but the above problem suddenly occurred to me and I don't
think I can do it. Unless, of course, one-way valves can be put into
waste pipes.


What I did outside was make sure both pipes have a 90 degree fall on
'em as soon as they leave the house....water'll have to be going some
to get back up those
--
cheers,

witchy/binarydinosaurs