UKdima Engineering Ltd, site drilling specialists, of Stirling, who were there to drill two 450mm diameter holes through the base of the castle wall into the room which gave access to the well. The holes angle up at 15 degrees. One will take the biomass boiler extract, which will go up one of the castle chimneys, the other will carry the water and drainage pipes. The heating system will access the castle through the well itself.
The men on site today were Alasdair Smith, right, and Liam Martin, who were kind enough to show me how their machine worked.
Alasdair and Liam arrived on site yesterday and hope to be away by the weekend, though much depends on how resistant the rocks of the castle wall prove to be.
Many thanks to Liam and Alasdair for their patience in explaining their work.