Hello, sprinkler experts... I have been renovating/cleaning our lawn irrigation system that was neglected by the prior owner. One zone is perimeter drip tubing (brown, 3/4", with weep holes every foot) that has, over time, ended up about 10" deep and occasionally pinched by roots. I have almost finished tediously digging it free around the entire foundation and plan to have it just subsurface or under mulch. Question: Where does the water come from? So far, I have not found a valve box for it (d...
