To locate the puncture/ air leak it is best to apply diluted washing up liquid from a spray bottle to the surface of the seats or backrest and around the inflation valves. Bubbles should appear where the puncture is located. To fix the puncture you will require a repair kit which should include a waterproof repair patch and epoxy vinyl glue.
If the troubleshooting does not resolve the problem, please contact our Customer Care team for further advice. If you are no longer within your warranty period, replacements can be purchased here.