Therefore in this example the manufacturers recommended weight of magnesium anodes would be 14kg to 20kg. Luckily anodes are sold by weight. Common sizes are 1.5kg, 2.5kg and 3.5kg ingots for standard weld-on canal boat anodes.nodes will offer protection based on the Noble Series of metals. The theory is that by attaching a piece of metal to the hull that is more reactive than the hull itself then this piece of metal will corrode first. For our inland waters we use sacrificial magnesium anodes for protection.
Pure water is a poor conductor of electricity while fresh water or tap water may be said to be a modest conductor and salt water has a much higher conductivity than fresh wate â¦ r. The electrical conductivity of water, both pure water and water with dissolved salts, is simpler to measure than to explain.
The best conductors are silver, copper, gold and aluminum respectively. Cost, weight and ease of handling dictate using copper or aluminum as conductors in most industries. Also it is used in piping as it is unreactive with water.