Available on Project MUSE and JSTOR. Online access to Contemporary Literature is available as part of the Project MUSE collections. All back issues of Contemporary Literature beginning with Vol. 1, 1960 are available online through the JSTOR digital archive.
Many manufacturers recommend water heater anode replacement every two to four years depending on the hardness of the water that passes through the tank and the quality of the water heater lining.
Top Reasons To Replace Your Anode Rod. 1  You want your water heater to last a long time. 2  It will cost you less to replace the anode rod than your water heater. 3  Water softeners can accelerate anode rod corrosion.  The water heater makes loud or multiple popping noises when heating 1  up. Your water heater is more than 5 years  old.