Flex Seal "stops leaks fast and is the easy way to coat ... We also used Flex Seal on a copper pipe with drilled holes of different sizes, on an unsealed gutter, and on a cracked flowerpot.

Your copper pipe ... Slow-dripping leaks are harder to find and may only reveal themselves when a sink or tub is in use. Begin says toilet leaks, typically from a poor seal, are the most stealthy.

According to the American Automobile Association (AAA), both plastic and copper pipes can burst ... Use caulk or insulation ...