My copper tubing for the water line to my refrigerator became slightly bent while I was installing it is it a big deal should I buy new copper tubing?
Copper work hardens, so every time you move that line it will become stiffer and more prone to kinking. A replacement copper tube will be "dead soft" and easier to work with. If you have the fridge back where you want it and the kinks have not produced a sharp spot (a flat is okay) then you're fine. You might want to buy a replacement to have on hand if you have to move the fridge again.