"Terry D" wrote in message
news:jJmsc.37$Dc5.19@newsfe4-win...
I've noticed that a lot of new houses have the old style outside soil drain
stacks, usually in black. They look horrible. Has anyone an explanation
for this? I thought that inside soil drains were adopted 30-35 years ago.

Terry D.



The pipes running down the outside of the walls may not be soil pipes, they may
only be rain water pipes from the guttering on the roof. What diameter of pipes
are they ? Anything less than 110 mm in diameter and they are rain water
drainage.


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