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extra sacrificial anode

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ziggypiggy555
ziggypiggy555 Member Posts: 2
edited March 4 in Domestic Hot Water
would strapping  a  chunk of magnesium mounted to the hot water outflow pipe do any good as a sacrificial anode??

i've seen some interesting magnesium cathodic reduction systems on boats; they had a common grounding buss that went from a massive chunk of Mg mounted outside the hull, then wired to all metal parts/struts etc. & thought maybe for a water heater?? 😎

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  • Larry Weingarten
    Larry Weingarten Member Posts: 3,302
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    Hi, It would look neat, but would do no good at all. It works on boats because they are in water. You can add a second anode to most tank type heaters though. Can you post a photo of the top of the tank and connecting plumbing. With that we can help you figure out the best way forward.
    Yours, Larry
    GGross
  • Jamie Hall
    Jamie Hall Member Posts: 23,313
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    All the boats I've seen the anode was zinc...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • kcopp
    kcopp Member Posts: 4,432
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    A powered anode would be the best option if I were doing one...
    GGross