Hose repair using a clamp
You may have to crank down on the hose clamp. If the size of the repair fitting is two small it will take some tape to build up the barbed part that goes inside the pipe. I have used electrical tape to do this in the past, Teflon might work but not as well as a vinyl that is thicker, I like the hose clamp style they don't strip out as easy but then I wrap the end with electrical tape,,, you guessed it I am an electrician. We have many hoses at our farm with tractors and horses stepping cutting hoses we have lots of repairs and this has worked well for me.