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Old 10-08-2020, 12:11 PM   #1
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Water Heater Questions

I have a Dometic Atwood water heater in my camper. After reading some of the manual I understand it has an aluminum and zinc clad tank. My 1st question is: Should I have an Anode Rod in this tank? My 2nd questions is: The drain plug takes a 15/16" socket. What size should I look for and what length of rod?
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Old 10-08-2020, 12:23 PM   #2
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Atwood water heaters with aluminum tanks do not have an anode rod.

The drain plug is usually plastic but not always if someone replaced it.
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Old 10-08-2020, 01:03 PM   #3
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Quote:
Originally Posted by 5picker View Post
Atwood water heaters with aluminum tanks do not have an anode rod.

The drain plug is usually plastic but not always if someone replaced it.
X2. Atwood/Dometic brand aluminum tank type water heaters do not need an anode.

It is the Suburban brand with their porcelain lined steel tanks that use an anode rod.
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Old 10-08-2020, 02:05 PM   #4
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So the aluminum and zinc clad tank is the anode? If that is correct I would imagine it would degrade and need to be replaced eventually?
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Old 10-08-2020, 02:30 PM   #5
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So the aluminum and zinc clad tank is the anode? If that is correct I would imagine it would degrade and need to be replaced eventually?
No... the aluminum and zinc clad tank requires no anode at all.
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