Greetings,
Why are you not allowed to solder copper pipe which is going to be installed underground? I want to be very clear what question I am asking. I am not asking for 10 responses stating that I must not solder copper pipe to be used underground or why don't I just use a compression fitting. I know that. I am asking why I am not suppose to? I am not asking for the reason "because someone said so". I am asking about the underlying reason.
Thank you very much for your time and energy, William