As part of our kelp restoration project here in Southern California we must relocate urchins from the planting sites in order for the new kelp to mature. Towards the end of yesterday’s diving I experienced some difficulty with my BC Hose/Air Source. I stopped by the shop on the way home to get it checked out, and when the tech opened it up we both had a laugh. She claimed she had never seen anything like that in her many years of repair service. Enjoy and dive safely.