Inevitably, just when you want to wash the car or water the garden, you can't remove the nozzle or hose fixture. Stuck garden hoses create frustration and strain for homeowners. Short of cutting off the hose and installing a new hose end, trying to separate the hoses at the connector requires muscle and patience. Most often, garden hoses become stuck because the hose end fittings get bent or damaged.
Grasp the connector for each hose end with a pair of pliers. Grip tightly and apply opposing force. Turning to the left loosens most hose end fittings. Make sure you're unscrewing the hose fittings instead of tightening them. Sometimes a little turn to the right and then a quick turn to the left will jiggle the fittings free.
Use a pipe wrench on each individual hose fitting to securely hold the hose end. The design of pipe wrenches allows for turning tight fittings and pipes used with plumbing. These wrenches adjust to fit any size hose fitting. Apply firm pressure when turning the wrenches to loosen the garden hose fitting.
Carefully pour scalding hot water into the hose connectors. Hot water causes the metal to heat up and contract, loosening the fittings enough for removal. Without allowing the metal to cool, use pliers or pipe wrenches to work the connectors loose.
Squirt a liberal amount of Lime Away onto the garden hose connectors and allow it to sit for at least 15 minutes. Sometimes a light solvent or cleanser will loosen grime and debris from the hose ends, allowing you to turn the hoses couplings. If this does not work, rinse off the Lime Away thoroughly before attempting other methods.
Work a lubricant such as Vaseline or WD-40 into the creases of the hose fitting. Allow the lubricant to sit for a few minutes before attempting to loosen the hose ends. Multiple applications might be needed to finally work the hose ends free.
Use a hacksaw to cut the hoses apart if all else fails. Replacement hose ends are sold at hardware stores with complete instructions for how to re-thread and secure new hose fittings on your existing garden hose.