You might consider stacking 2 or 3 of these disks on top of each other. I have no idea how much these cost. I suspect that for general use they would not be cost efficient.. A large copper pipe buried into Marconite would be a better solution.
You might consider stacking 2 or 3 of these disks on top of each other. I have no idea how much these cost. I suspect that for general use they would not be cost efficient.. A large copper pipe buried into Marconite would be a better solution.
