3 Ways to Fix a Leaking Cooler Drain Plug

Tighten the plug first Sometimes the gasket just needs a little more pressure. Try tightening it by hand before replacing anything.

Use plumber’s tape for minor leaks If the plug is threaded and the leak is small, wrap the threads with Teflon tape before screwing it in. This adds a temporary seal.

Replace the plug for a permanent fix Most cooler drain plugs are cheap plastic with a rubber gasket that flattens or hardens over time. A new plug is universal and costs a few bucks. If you cannot find the exact model, a rubber stopper from the hardware store works just as well.