this is an all-the-time maintenance issue on my farm. we use the blocky-shaped metal menders*, and they generally last 2-3 years without issues, even with the heavy use they get on the farm here. The ones with the smaller barb and the strip of metal you tighten with a screw, tend to come loose and also are hard on your hands if you're moving hoses around a lot. just make sure you get the right size of mender - check if your hoses are 1/2" or 3/4" (internal diameter) before buying.
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Date: 2021-05-31 05:50 pm (UTC)*this kind: https://www.walmart.com/ip/Garden-Hose-Repair-Fittings-with-Clamps-Aluminum-Mender-Female-and-Male-Hose-End-Connector-with-Zinc-Clamp-Fit-for-5-8-Inch-and-3-4-Inch-Garden-Hose/755957628