Fortunately, you can build an adaptor that will allow you to fill a bladder with compressed air instead of relying on lung capacity. Pin holes caused by bushes, rocks or whatever are just a part of the game when it comes to using air-filled crafts. Rubber tubes are easy enough to repair with a tire repair kit but urethane bladders are not so conventional. This isn't a case against urethane bladders. Urethane and other synthetic materials are the wave of the future but you must learn to adapt with the times.
Synthetics require a different approach when it comes to care and leak repair.
Be tender with urethane bladders. Don't toss your craft down on thorns or drag it down a rocky bank. If you do end up with a leak, it can be easily repaired . The Virtual Flyshop. All rights reserved.