Main plumbing line..

So today we had the excavators start the work on our main plumbing line and backfilling. They measured the proper slope for our main plumbing line to the septic tank. They dug a trench and laid the main plumbing line in the trench. We are also bringing several truck loads of red cinder which is cheap and suitable for back filling our vast holes around the house. They will be back on tuesday to finish the plumbing work and backfilling. The excavator blew a battery and he was not able to start the machine anymore so he couldn't get everything done that he wanted today. Its always good fun watching these machines work.