Over 90% of all water heaters are replaced needlessly and sediment buildup is the number one cause. It will shorten it’s life, decrease it’s efficiency, bury or burn out elements, and cause a severe shortage of hot water. Sediment extraction can be extremely labor intensive, but now with the Turbo Tank Cleaner it is much much easier to clean and repair than to replace. So if your tank isn’t leaking there should be no reason to replace it.