You can also find them with ground penetrating radar since they tend to use sand as that insulating layer. From underneath they open a hatch and drain the sand out to clear the escape hatch. A big block of sand is plain and obvious to identify on a 250MHz system.
You can also find them with ground penetrating radar since they tend to use sand as that insulating layer. From underneath they open a hatch and drain the sand out to clear the escape hatch. A big block of sand is plain and obvious to identify on a 250MHz system.
I’ll just use my Amazon basics ground penetrating radar then
Sounds like you have a suspicious amount of experience
I’m guessing utility location.