Phil L wrote:
Lawrence Zarb wrote:
Is it allowable to drain the rainwater from my conservatory into the
main sewer, as this is more conveniently located than the storm
drains

If the house is older than 35-40 yrs, then yes, they all join up
underground anyway, newer houses have seperate rainwater and
foulwater drains.

Our house was built in 1907 and has a separate sewer system. For these sorts
of systems built at the time, it was normal for the front (w.r.t. the road)
guttering from your roof to go into the separate system, however I guess due
to cost implications the rear guttering was still normally routed into the
foul.
Jon