I have a Hills retractable clothesline that isn’t maintaining tension and needs repairing. - The lines extend, but become very saggy as soon as any weight is applied. - The tensioning lever adds some tension when closed, but doesn’t seem to lock properly. - All the lines have bumps/kinks at roughly the same point, which I suspect may be interfering with the internal spooling or retraction mechanism. - Once the lines sag, they don’t automatically tighten again. Looking for someone familiar with retractable clotheslines who can diagnose and repair the mechanism, ideally rather than replacing the entire unit. Happy to provide photos. Please let me know if you’ve repaired similar clotheslines before and whether replacement parts might be required. Located in Newtown, Sydney.