That's why you need hose clamp pliers. There are different styles of hose clamp pliers. Most look similar to regular pliers, or arc joint pliers. Another design, called remote cable pliers, have a ...

Squeeze the tangs with a pair of pliers until firmly in place. Avoid applying too much pressure to avoid puncturing the hose. If the leak is at the hose ends or in the middle of the hose, use a clamp ...