Dazmond....
The way we use a tap on the pole, and the loop it creates is fine to start with as the hose is straight and kink free.
Constantly opening and closing the pole causes the hose to rub against the butt end of the pole on one edge, doing this 100s of times causes the "memory" of the hose to alter, so instead of being straight causes it to kink and twist and you wont get it back to its original state easily so just change it when it gets too bad.