Dometic Sink/Shower Tap

Thanks to CV19 our combined shower/sink tap has had plenty of use this year as we’ve tended to use our own van facilities. However, all that use has revealed a weakness. The retractable pipe has started to kink as it curls up in the locker after use. The supplied pipe is not really up to the job and I need something more robust that can cope with regular use without collapsing. Has anybody  had and solved this problem?