If your leak is more in the center of the hose, trim out the damaged section and splice the hose back together with a repair hose coupling or mender. A leaky connection at the spigot can usually be fixed with a new washer, while a hosepipe fix will depend on the nature of the hole Whether to repair or replace a leaking garden hose depends on the extent of the damage and the age of the hose
How To Fix Leaking Hose Reel at David Oldham blog