I tightened up a saggy rotary drier line last year. Just undo the final knot and pull it taut starting at the centre.
Make sure it's not so tight that you can't open and close the drier, though or you've wasted a bit of time! DAMHIKT
Make sure it's not so tight that you can't open and close the drier, though or you've wasted a bit of time! DAMHIKT