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Originally Posted by retiredguy123

I have read my Rheem manual, and it doesn't have any definitive recommendations for maintenance of an electric tank type water heater. It only "suggests" draining a small amount of water from the tank occasionally. There is no recommendation for draining and flushing the entire tank, or for replacing the anode. I have never done any maintenance on a water heater.

I think electric water heaters have a major enemy called calcium. We had an electric heater many years ago that had heating elements that needed changed out every few years. Our water was high in calcium and when the tech removed one of the elements a lot of sand like material came out; he stated it was calcium. I’m not sure if Florida water has a high concentration of the mineral or not. If it does, I would drain it every couple of years.