On Wed, 30 Dec 2009 20:11:45 -0000, OG wrote:

My MIL's house built in the 30's seems to have recently blocked its
soakaway from the porch. The plan is to cut into the downpipe and insert
a diverter to pipe the rainwater down the side of the house and into the
outside drain where the kitchen and bathroom grey water pipe outfalls
are.

Check what the MIL's water board are charging here for. If it
includes surafce water in the sewerage charge fair enough but if not
the bill could increase (if they found out...). Or if there is no
surface water entering the sewage system she might be entitled to a
reduction in the bill...

--
Cheers
Dave.