First of all 7014 is not a low hydrogen rod. It is an iron powder type rod. Secondly, on an AC machine, there is no such thing as reversing the polarity. AC means alternating current. 7018's made specifically for AC machines will work better on them than the standard 7018. That's why they make them. A standard 7018 is designed to be used on DC reverse polarity or AC current but on the cheaper AC welders, they can be more difficult to weld with than the 7018 that are made especially for AC machines. 7018 are usually the only rods that are stored in a rod oven. 7018 are low hydrogen rods and way stronger than 7014. As long as other rods are kept dry, they shouldn't have any problems. Some rods like 6011 or 6010(DC) can dry out too much. 6011 although a rougher looking weld will be easier to strike an arc with using an AC machine. Dave
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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