Sacrificial Anode - Fiberglass RV


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Old 09-03-2020, 06:45 PM   #1
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Sacrificial Anode

I have heard that an anode rod does no good in a Scamp water heater because it is lined. But last year I decided that for $5 it could not hurt anything. A year later it is showing some erosion. Does that mean that it is helping??
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Old 09-03-2020, 06:49 PM   #2
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Doesn't appear to be doing much, if anything, but a lot depends on the water in the tank. Some locales eat an anode in six months. Mine last six years, or more.
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Old 09-03-2020, 06:59 PM   #3
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Quote:
Originally Posted by AC0GV View Post
I have heard that an anode rod does no good in a Scamp water heater ...
Scamp does not manufacturer water heaters... Suburban and Atwood do however. What model do you have? Some use anodes.. some dont.
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Old 09-03-2020, 08:04 PM   #4
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A lined tank (Suburban) can use an anode, but it if it is an aluminium tank like the Atwood no anode.
There are always micro cracks in the glass and the Anode will help protect the steel, but aggravate corrosion with the aluminum.
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Old 09-03-2020, 11:21 PM   #5
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Magnesium??

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Originally Posted by redbarron55 View Post
A lined tank (Suburban) can use an anode, but it if it is an aluminium tank like the Atwood no anode.
There are always micro cracks in the glass and the Anode will help protect the steel, but aggravate corrosion with the aluminum.
The one I installed is listed as a Magnesium Anode Rod for Atwood Water Heaters.
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Old 09-03-2020, 11:23 PM   #6
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Six Gallon Atwood

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Scamp does not manufacturer water heaters... Suburban and Atwood do however. What model do you have? Some use anodes.. some dont.
Six Gallon Atwood
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