For a quick fix on copper pipe, small leaks, keep handy an easy repair kit. All that is needed is a hose clamp and a small piece of firm rubber, such as small section of garden hose. Simply insert the rubber around the leak and clamp. It will save you from having to drain the system, until you have more time on your hands. The clamp and rubber section of hose helped me out of a few jams, especially if you don’t have copper or solder on hand at the cabin, it could save the weekend! Remember: clamp and rubber, plus screwdriver.