7 Year old hot water heater
I just moved into a house with an electric hot water heater, an AO Smith ProMax installed in 2006. I don't have an odor with the cold water, but the hot water is a little rusty smelling, and it fills the tub with reddish water. I'm sure the issue is with the heater. My question is: is it worth it to flush the tank and replace the anode rod, or should the tank just be replaced at this point in its life? I don't know what, if any, maintenance was done on it since it was installed (I'll bet none) and add to that the hard water in the house, I'm wondering if the rust will return in short order no matter how many times I flush it.