[retiredguy123]

Originally Posted by DavidK

While on the topic of replacing water heaters, one way to extend the life is to flush the tank once or twice a year. You should flush a water heater to remove sediment buildup that accumulates over time, which can significantly reduce its efficiency by acting as an insulator between the heating element and water, leading to longer heating times and higher energy costs; regular flushing helps maintain optimal performance and extend the lifespan of your water heater by preventing issues like corrosion, clogged valves, and potential leaks from sediment buildup.

Sediment buildup:
Minerals and particles from your water can settle at the bottom of the tank, creating a layer of sediment that hinders heat transfer.

Improved energy efficiency:
By removing sediment, your water heater can heat water more effectively and quickly, saving you money on energy bills.

Signs of sediment issues:
If you notice a decrease in hot water output, fluctuating water temperature, rumbling noises from the tank, or rusty water, it could indicate a need to flush your water heater.

Regular maintenance:
Most experts recommend flushing your water heater at least once a year, especially if you have hard water.

I would just point out that the Rheem manual does not recommend ever flushing out their water heaters. Also, do you really think you get a thorough flushing of sediment through the very small opening in the drain valve? There is also a good chance that when you close the drain valve, it will start to leak. Most people, including me, don't do any maintenance on their tank type electric water heater.