When a copper pipe corrodes and leaks or bursts from freezing, you have to fix it fast. If the leak is pinhole-sized and less ...
A professional plumber would cringe at what I've done. Epoxy putty is another quick fix for a leak in copper pipes.
Can I patch leaks in copper plumbing? Have I done it? Yes. Does it last? For a bit. Patching in replacement pipe is usually the best fix, but I've had success using homemade pipe repair clamps ...