Well there is some progress, but it is limited by the unavailability of the expected digger, delayed by the failure of the transport for it.
But work has started on the manual-dig bits, essentially into the washroom where the heat pump will be located under its wall. The terrace tiles are mostly damaged and will need replacement - and the original makers no longer do them but know a man that does....
The plumber is fairly satisfied that he has what he needs except for the considerable amount of insulation needed (for all the connecting pipework - otherwise it would need to be very deep and all go and return pipes would need to be 1m separated). The Ice Energy book is usefully specific.
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