Hey I really thank you for all the great info, and you bet on the part about regurgitating old questions. I do understand sacrificial anodes are used as a sacrficial metal as the name suggests, thereby protecting the copper pipe in say your hot water heater. I have removed them from some due to them causing an odor in with some well water. Shortens the life to varying degrees but makes showering etc. Less likely to induce vomiting.

thanks again on the heads up with the forum I will be checking it out.