Now the trench has been dug out to over 10 meters away from the house, there is still no sign of the pipe, although when the diggers got under the patio a rather pungent odor was encountered ! We have not gone any further to avoid disturbing the high pressure sewage pipe, just in case.

The picture above is taken from the house and the pipe you can see is a surface water drain for rainwater. That pipe matches the line of the one in the diagram provided, but is certainly not the high pressure main sewer.

This picture is from the patio back up to the house, you can see the line of bricks hanging in the air, that is the edge of the patio still in situ.

This is a diagram we found from the early 70's that shows the proposed layout of Church Close and shows the probable location of the pipe we are after. Our house is plot 5, and you can see the original size of the plot before the garden was extended into the field behind.