Well that is all the ground loop pipes in. Pressure testing still seems to show some decline (5 bar to 4 in an hour or so) so we shall see.
The missing valve came in OK.
The actual heat pump delivery is now scheduled for 3 weeks time or thereabouts.
It will be good to get the drive back!
It is interesting to see that the soil/clay/rock in the drive bed is quite layered and varies with position. I suppose the area has been a yard for centuries and must have seen a good deal of change.
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