Can I reuse the same Copper flare line connected to a gas valve if I am going to replace old valve with a new ball new one. I am trying to add another gas branch to put a tee with another small black pipe before old valve. In order to do it I am going to untighten a copper line from a valve, then remove old valve and a new tee with a new pipe, then put a new valve and reconnect a copper line, which is going to a dryer