Chapter 1 - Introduction
2016-6-2 · Extract a pipe cleaner from your package and check it to make sure the end is straight. Pipe cleaners are stiff wires into which cotton fibers have been woven. If the end of the pipe cleaner is bent, that cut wire can scrape the inside of your pipe. You can flatten the pipe cleaner end with a finger or using your tamper against a hard surface.
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