On 19/08/2020 09:26, Mike Halmarack wrote:
The last plumber who came around said that as the pipes flexed during
changes in pressure and on and off use, the joints worked loose.
This is made worse by bits of disimmilar pipe being connected
together. Also that the pipework is just hanging there, instead of
being held firmly in place by various possible means.

That reminds me of a conversation I had during a job I did in a 13 story
hotel in Durban, South Africa...

...The building manager said that the sewage from all floors fed a common
single massive plugged together riser...but unfortunately it had no
expansion joints, and in the hot Durban sun, the building expanded
several inches whilst the riser, in the air conditioned interior spaces,
did not...sewage spills were routine



--
€œBut what a weak barrier is truth when it stands in the way of an
hypothesis!€�

Mary Wollstonecraft