Well we are drilling!
Only down a few metres so far but still clay, which is fine. A clay hole should be self-supporting (there are steel sheaths if necessary). The drill cuts up the stone/clay etc. and a water flow sucks up the debris (hence the big orange pump) into a tank where the water is recycled and the debris shovelled into a skip. The big white tank of reserve water was filled from a hose.
The drilling machine is fairly compact (small-car-footprint) but tows a trailer with the huge orange water pump on it. The plastic sheets should limit the mess but in fact a short length of steel sheath seals the hole to the machine to enable water circulation anyway.
The low-loader turned up as expected, preceded by the two-man drilling crew (8.00am) who seem competent, friendly and efficient. All the same we will not be finished by Friday so the skip will be collected Friday afternoon and a new one delivered Monday.
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