How many feet of pipe did you run out in the trench? How ddep was it? I'm curious about this, but wouldn't want to ge through the effort if I need to lay 100 feet or more. Do you have it zigzag through the ground or just have straight shots? Thanks.
How long of a run and how deep is it and how is it laid out? - Do you have pipe zig-zagging near each other?
Then, after that, whats the difference in potential you're realizing from it? - In other words, whats the temp going into the loop and whats the temp coming out?