Our street is getting new water mains and they've pulled up the sidewalks which will eventually be replaced.
I don't have plans for a sprinker system but am thinking I can't pass up putting an empty pipe or conduit under ground before they pour the new sidewalk. I envision an pipe a foot or so longer on each side than the sidewalk buried with the ends taped shut. I'll of course keep a written record of where they are.
What pipe/conduit should I use and how deep should I go? Right now they're filling the 6 foot trench with sand than then topping with a few inches of gravel.