It's no fun when you turn on a garden hose and it sprays you in the face or soaks your clothes. It is one of the most annoying things to deal with when using an outside faucet. Most hose nozzles tend to leak at the connection point, but you can quickly seal it off to prevent future soakings.
Remove the nozzle from the hose. Grip it firmly and twist it to the left.
Check the washer inside the hose nozzle. If it looks deteriorated or split, replace it with a new rubber washer of the same size. Remove the old washer and slide the new one in its place.
Put the nozzle back on the hose and test for leaks. If you still have a leak, take the nozzle back off.
Clean the hose end and the inside of the nozzle with a small bristle brush to remove buildup.
Dry off both the end of the hose and the inside of the nozzle with a towel.
Tear off a 3-inch-long piece of plumber's tape, sometimes called Teflon tape. This tape is used to fill in gaps between threads on pipe connections that require a tight fit.
Wrap the tape around the end of the hose in a clockwise direction, covering the threads. The tape should be long enough to wrap around the hose threads twice. Pull off any excess tape.
Screw the nozzle back on the end of the hose. Place on the end of the hose and twist to the right.
Test the hose by turning it on slowly. If you still have a leak, repeat the process, but wrap more layers of tape around the hose threads.