The core of the Peper Harow Estate:
Old Cedars, under construction.
Peper Harow House
The River Wey at the bottom.
and the Aeroplane wing blocking some parts of the picture !.
Map of drain routes, the bigger the blob the bigger or deeper the manhole.
Red lines are foul sewage water which go to the Sewage Treatment Plant
off the bottom of the map, where it is processed:
1: Flow devided between two tanks.
2: Floating items seperated.
3: Sinking items, settlement tanks (2)
4: Rotating water driven filter beds (2)
5: Second stage settlement tank (1)
6: Surface skimmed
7: Discharged to river Wey.
Green lines are surface rain water, land drainage water, and spring water,
and are discharged to the river Wey.
Some of these are modern drains, but the one from the duck pond is a
brick built arched culvert about 18inches high and wide and heads of
in the direction of the Bath House, whether it gets there is doutfull,
it was probably damaged when the deep main drains were dug in the 1950's.
Where lines cross without a blob, the drains do not meet because the are
at different depths, and/or are different sources/destinations.