So I have (I am pretty sure Atwood) heater with just the plastic drain plug. Whoever owned the RV before me rounded off the plug and I am pretty sure I am going to have to remove it the hard way. No big deal there, but I need to sanitize the water system and figured on draining the water heater and replacing the plug. I am looking at one of these "Camco 11553 Magnesium Anode Rod - Fits Atwood Heaters" rather than getting a new plastic plug.
Does the anode make that much of a difference in the life of the heater? Also since it is metal seems like it would be less likely to round off in the socket than a plastic plug.