Hello Cheri,
The zinc anode helps to collect scum in the bottom of the tank.
You should drain it with the bottom valve and try to flush the gunk out.
Then the vinegar treatment. ( In fact using the vinegar in the main water
tank wouldn't hurt either. ) It sure works on coffee makers and other things.
__________________
Sean
If Ain't a Newell, It Ain't Wurt Oonin!
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