Here is an interesting product from the Superglue people: an adhesive for copper pipe that does not require soldering. From my previous copper pipe sweating experience, this may be the product for me! From the website: ‘Repair Copper Pipes without solder! Do you have some leaks in your copper pipes after the harsh winter? This unique product will fix you up in less than 20 minutes. Safe and easy to use Copper-Bond is UL listed for joining copper tube used in fire sprinkler systems and and NSF approved for hot and cold water systems.’