Corrosion protection in fresh or brackish water is different to salt water. Vyv Cox has this expert advice for those regularly flushing an engine with freshwater Engine anodes are usually made of zinc rather than aluminiumFlushing an engine with freshwater after use is probably a good safeguard against corrosion; however, different metals do react with one another in freshwater. When a boat is in freshwater an aluminium anode works better than z…
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