Does anyone have any experience with ground penetrating radar? My son and I are researching getting into it. It can "see" PVC pipe , fiberglass tanks, rebar in concrete, old ditch lines, sewer taps down to 15 ' ( 30' with optional antenna ) basically anything different than the soil it is in. Does it sound like something any of you would use if it were available to you? We are trying to find a niche. There are too many excavators in our area. If we can work for them not against them It might be a easier road.