On Sat, 13 Dec 2003 11:11:38 +0000, "Ed Sirett"
wrote:

There must have been a reasonable run for the bath waste when it was new
what has changed (the bath has been turned around 180 so the plug is not
near the waste? - Odds on I'd say).

No, it was the original bath I took out earlier in the week. The lady
who owns the flat has had the drainage and fill problems all the time
she's been there.

Plus it would be physically impossible to run the waste under the full
length of the bath, unless the bath was mounted at least 9 inches off
the floor - where the waste enters the wall it comes out and hits the
bottom of the bath, so you have to turn the pipe down to get to the
trap under the bath! The plumber must have been on chapter 1 of his
good plumbing guide when he did this job - or there's another problem
at the stack end of the waste pipe (which I can't get to) which
explains why it is so high. Maybe there's a big joint or elbow at the
stack end which makes this waste mounted so high.

This new bath is a shallow job about 4in lower than a regular bath,
specifically chosen because the lady is severely disabled (spina
bifida) and needed to have the side of the bath she climbs over as low
as possible - I've raised it as far as is reasonable for the
installation, any higher and this lady would have extreme difficulty
getting in/out.

Let me guess further we are talking about a 1970s flat, give or take, with a
silly set of tanks holding water to give about 0.05 bar at the kitchen hot
tap on a good day.

I'd say that was about right.

PoP