Looking down a recent hole-in-the-pavement in its maturing phase (left to its
own devices for a week), found they had removed a chunk of what I think is the
water main and added a "stopcock".
But they also fitted a bypass with an intricate-looking thing in the middle.
Anyone know what it is?
2 pics here (the blue pipe at the bottom left is just being used as a wedge):-

http://www.flickr.com/photos/1362986...7606743420944/
or use
http://tinyurl.com/5raof5

Geo