In our upstairs bathroom, at the toilet/basin/bath tap end, there is a large
boxed area that has been tiled and takes a lot of the floor space (hides all
the pipework). This had been made into an extension of the bathroom window
shelf and on the right has another box going up to the roof with the soil
stack in. As the box runs the width of the bathroom, is window high, and
about 2 feet deep, SWMBO rightly wants it removed when we redo the bathroom
(recessed sink, concealed cistern etc).
My question is, do I need to retain the stack pipe and hence it's box, or
can I cut it off and fit a Durgo valve? A builder has said it's only there
to stop the toilet siphoning and not to vent fumes out of the roof, is this
Thanks in advance.