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Anode compatibility

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kcopp
kcopp Member Posts: 4,576
in Domestic Hot Water
Is there an adverse effect of adding say an aluminum anode to a tank that already has a magnesium anode to it? do they "fight"? I am thinking of offering it to customers to add life to their tanks when I install them new. ty,kpc

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  • Larry Weingarten
    Larry Weingarten Member Posts: 3,892
    Always best...

    ... to keep anodes the same metal in a tank.  I like magnesium for most things.  If different metals are used, say aluminum and magnesium, the Mg will get used up faster protecting the Al anode. 

    By the way, adding a second rod to your client's tanks is doing them a real favor!



    Yours,  Larry
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