In message <
v4tm6dpsslhe3lv6l...@4ax.com>, Chris Hogg
<
m...@privacy.net> writes
>Likewise 1960's properties. On our recently inherited bungalow, some
>down pipes have a soakaway immediately underneath, others feed into
>the mains drainage. But planning permission for a recently installed
>conservatory was conditional on rainwater being piped to a soakaway
>dug 5 metres away from the foundations.
Often found at 6m:-) Standard pipe length.
We once had a house dating from the Edwardian period. That had a *soft
water well* : big underground brick tank with a nice arched roof.
Rainwater was piped there in 3" salt glaze. Pipes also ran off at high
level to a drain field under the lawn. The house had a small room known
as the *tank room* and I think water was pumped there for use. Mains
water led to the storage tank being removed and a toilet fitted in the
space.
Bad move to discharge water near foundations! My grandfather had a house
built in Cambridgeshire. The builder misread the plans and put the
kitchen sink in the wrong place. To overcome the problem he used a
90deg. bend in the pipework leading to the cess pit.
When we sold the house 50 years later the couple buying knew that there
had been some long standing subsidence and arranged an investigation. An
excavation of the suspect foundation found that grandfather had broken
the pipe at the bend by enthusiastic rodding.
40 plus years of bath and dishwashing water had done the rest.
The geological survey has the area as Greensand which is meaningless to
me. Plenty of nice Chalk as well.
>
--
Tim Lamb