Although the video is sufficient to understand how the is working, I'd like to propose to add a little clip of actual work showing how people is preparing the plugs, grip fitting, washer fitting, insertion in tube and tightening, hose fitting and last at what pressure the plug is working.
Although the video is sufficient to understand how the is working, I'd like to propose to add a little clip of actual work showing how people is preparing the plugs, grip fitting, washer fitting, insertion in tube and tightening, hose fitting and last at what pressure the plug is working.