A nozzle is a handy device that provides watering options when attached to the end of a hose. But over time, especially when left out in the elements, a nozzle can rust and become difficult if not impossible to loosen and remove. Instead of wrestling with the rusted nozzle or resorting to cutting the end off the hose, you can remove it. The key is to lubricate the nozzle so the rust will yield and allow you to remove the attachment from the hose .
Turn the nozzle so that the part that attaches to the hose is pointing down. This will allow the lubricant to soak down into the threads.
Spray a petroleum-based lubricant into the area between the hose connector and the nozzle so that the lubricant penetrates the rusted threads.
Hold the hose with a rubber gripper placed close to the area where the nozzle is attached. Adjust a pipe wrench and place it on the end of the nozzle where it connects to the hose.
Rotate the pipe wrench counterclockwise to loosen the nozzle from the hose.