I would move my Tesla coil out into the garage, but I just can't bring myself
to move my pickup outside. I would have to remove the garage door opener and
maybe the overhead rails that the door rolls up on. I do have good ceiling
height out there, must be 9 or 10 feet.
My wife did suggest that I buy a prefab metal building to move the coil out
into. She is probably thinking about a 8 x 10 building that you buy to store
the lawnmower in. I think I would need at least 20 x 20 and then there would
not be much room for the operator. I don't think she has any idea how much a
decent building would cost. A 20 x 30 pole building with steel sides and
roof would probably be adequate - and cost 8 to 10 thousand.
No, I have not tried the septic ground idea yet. It is not conveniently
located close to the coil and would add at least 40 feet to the ground path.
I bet it would provide a better ground than I have now. My two ground rods
are driven in just outside the basement window right next to the coil. They
are close to the foundation, probably only two feet away. That is all the
farther I can go out without getting into the lawn. It does provide a short
path, probably about 15 feet from the bottom of the secondary to the first
ground rod. I have another new ground rod but have not driven it in yet as I
would like to build a better ground system and am still thinking.