I have a couple DC 18s. Great Vacuums, except the internal hose is a weak point. Both mine have torn open. Dyson does not make the part available anymore or I would buy one. The part number is 916579-01 and it is out of stock everywhere.  I assume there is a way to repair it, I just haven’t been able to how to figure out how it is attached on the end. I have looked online and don’t see any videos either. Has anyone done this repair? I haven't seen a new vacuum I like as much as this one, so I am doing what I can do to keep it going. Any ideas will be appreciated.