Does anyone have any suggestions for any good knots that can be used to tie coiled tubing together? I want to be able to easily tie the hose tightly and at the same time have a knot that can be easy to untie.

My problem is that when tightening the cord around the coiled hose, once I try to tie then the cord gets looser around the coiled hose and the coil gets "sloppy".

I saw a person do a good knot for this once, but unfortunately I didn't see how he did exactly because he did it so fast. When he first tightened it around the coiled hose, it stayed tightened and then he could easily finish the knot so it became permanent and it was easy to untie.

Any suggestions on any knot name I can look at that could be suitable? Thanks