Ernie Juhn; I have just finished your concluding article on trouble shooting. I must say that I have thoroughly enjoyed each of the three articles as they put out very useful insights and reminders that we all can use and need to be reminded of. Thanks for the time used in writing this series, it is appreciated. About the pin inside the steel tube. I have never ran into a pin inside the tube but I have found quite a few of the round metal punchings loose inside the trapwork tube. It is almost impossible to get those out without cutting the tube in some way. My solution is to put a section of refrigerator magnet on the bottom of the tube, tape it in place and the noise is gone nevermore to return. Just thought I would pass that tip along. Thanks again Ernie. Jim Bryant (FL)
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