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Initial work on the "Copper Knight" began almost 30 years ago, but didn't really achieve its true potential until the end of the "Cold War". It was the downsizing of the many defense contractors in this area that provided the right people with the right technology to get the job done. The "Copper Knight" deals with the "pin-hole dilemma" by using a very old, but very effective method of protecting metals from corrosion. This tried-and-true method is known as Cathodic Protection. Cathodic Protection uses a sacrificial anode to control the corrosion process in many kinds of metals. In plumbing, the most common application of the method is the use of an anode inside domestic and commercial water heaters. It works so well, that virtually every water heater manufacturer in this country has one... The "Copper Knight" applies this old technology in a new and unique manner. Instead of protecting the internal surfaces of a water heater, it protects the entire surface of the copper piping system.
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