How to do a "T" Seal #6

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If the hole is too small for the tube, do not seal the tube on with the intent to "fix it later." Because glass is a very poor conductor of heat, it is essentially impossible to repair this type of problem after the tubes are in place. The only way to repair a small initial hole is to use a pointed carbon rod to flair the hole bigger prior to sealing the tube onto the hole.

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