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Old 01-18-2014, 07:32 PM   #1
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Why does RV Water Heater Anodes deteriorate so fast?

I have a few questions about the water heater anodes.

1. Why does magnesium sacrificial anode in water heater deteriorate so fast? (1year).

2. Why can't we use aluminum anode like in our house water heater?
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Old 01-18-2014, 07:52 PM   #2
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Do you have the Atwood or the Suburban and why the Mg rod?
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Old 01-18-2014, 07:54 PM   #3
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From what I've been told, you can use either type anode. The deterioration rate depends strictly on the water to which it is exposed.
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Old 01-18-2014, 08:16 PM   #4
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Here is a link which explains anodes. You might want to read the part concerning aluminum anodes (not recommended). Hot water heater anodes and rust protection
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Old 01-18-2014, 10:56 PM   #5
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i just replaced ours for the first time in 7 years, so i don't have the same issue.
maybe our water is much better than yours.
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Old 01-18-2014, 11:14 PM   #6
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Quote:
Originally Posted by Mikegjax View Post
Here is a link which explains anodes. You might want to read the part concerning aluminum anodes (not recommended). Hot water heater anodes and rust protection
Excellent linc....Knew I was using Magnesium for some reason...now I know
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Old 01-19-2014, 04:29 AM   #7
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i just replaced ours for the first time in 7 years, so i don't have the same issue.
maybe our water is much better than yours.
I bet your water comes from Lake Tahoe? I know it supplys the Bay Area. Best water around IMO.
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