So to start im still new to the world of pipes and pipe smoking. I recently got a Dunhill shellbriar estate pipe that needs some work. The first thing i noticed was the inner tube sticking out into the bowl. To be honest i had no idea what the hell that was. Thanks to this forum i got educated. The inner tube is broken and im not sure how to remove it. Do these pipes require the inner tube? From what i read its considered a filter and just helps keep the pipe clean longer? The stem is in ok shape. It has a small hole at the lip. How does one go about repairing a hole? Ive seen some talk about black superglue. If any of you could give me some insight that would be great.