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as a plumber for the past 30 years i feel justified in making this statement galvinized pipe rots internally and you can't see most of the corrosion/many localties no longer accept galv pipe for gas lines. copper is a great product for this and can be soldered or a special tool and fittings called a propress is available (check out viega plumbing products for more info.) there is also a new aluminum tubing meant especially for airlines which uses compression fittings to join it together . brazing copper tubing isn't too hard sometimes easier then even soldering cleaning isnt as important in brazing either
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