On Thu, 16 Dec 2004 14:40:39 +0000, pizza
wrote:

Though what I'm most interested in I guess is: do these things actually
work?

They're designed to stop vacuums from emptying your waste traps. This
much they do.

They're not intended to release over-pressure. So complaining that
they don't doesn't really cut much ice.

I can't see myself ever replacing a two-storey stench pipe with one,
but they are useful for flat conversions in existing buildings, or
even for replacing a single-storey stenchpipe if your bathroom is in a
single-storey rear extension to an old terrace.

If you install it in an internal cupboard, then it doesn't need to be
deliberately vented (few cupboards are airtight), but it does need to
have a reasonably large internal volume.

Or am I gonna find out in two year's time that it's leaking foul
odours and I have to replace it

One day it'll stop working. I've seen them (admittedly only a handful)
in service for about 7 years now, and not yet seen a failure.



--
Smert' spamionam