Here in the midwest we experience 4 seasons with snow on the ground for 4-5 months. Per specs water lines (service lines) should not be less then 3' but should average 4-5' deep. We just installed a system at a 80yr old home. Midway through the owner offered my install guys a pitcher of water. But the water did not work. But there was no water surfacing in the yard either. Long story short is we caught the water line 6" deep and cut it. It was like the event of the summer for the people living on the street. What????