I've always heard that you should deflate a cat's air bladder when you catch one from deep water. To be perfectly honest, I've never done this and I'm not completely sure how to go about it. Most of my fish come from less than 20 ft of water and I have noticed that I see the fish will release bubbles of air as they approach the surface. So, exactly how does one go about deflating an air bladder. I've heard that you can insert a piece of PVC pipe down their throat to release the air. If that's correct, what size of PVC? How far do you have to push it in? Do you round off the ends of the pipe? I'd really like some details from those of you that have peformed this feat. Thanks all in advance.