Day 14 - Trench Warfare

The first two trenches for the Ground Source Heat Pump are now in and the pipework is down. We lay 100mm of soft sand on the bottom of the trench, then slinky the cables out and straight back in a big loop. Cover with another 100mm of sand and then pressure test to 3 bar.

Both pipes passed their tests and the trenches are being backfilled as I write.

The pipe was far more rigid than anticipated, but luckily the ground workers had a cunning solution - tape it over the exhaust for the digger and allow the fumes to pass through it for around 30 minutes. The heat from the gas warms the pipe and makes it more pliable. Genius!

    

I have been a bit behind on the blog for the last few days as we've been moving the company into its new digs in Quy and looking after a new addition to the family.

Hectic times!