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 > My water heater drain plug is metal, is that a problem?

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way2roll

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Posted: 10/12/21 07:46am Link  |  Quote  |  Print  |  Notify Moderator

All former RV's I have had came with a plastic hot water drain plug. My new one is metal and it's rusting. I am going to drain it for the winter and wondering if I shouldn't replace it with a plastic one. Might even go further and get one with a valve built in. Thoughts?


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Posted: 10/12/21 08:28am Link  |  Quote  |  Print  |  Notify Moderator

It may be an anode rod depending on brand/interior construction.


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valhalla360

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Posted: 10/12/21 09:00am Link  |  Quote  |  Print  |  Notify Moderator

High probability, it is also the anode...you don't want to replace the anode with a plastic plug.

Something will corrode and if there is no anode, it's the tank.


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pinesman

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Posted: 10/12/21 09:05am Link  |  Quote  |  Print  |  Notify Moderator

Of the ones that I have seen, Atwood usually has a smaller plastic plug but Suburban has a larger metal one with an anode rod attached

way2roll

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Posted: 10/12/21 09:27am Link  |  Quote  |  Print  |  Notify Moderator

I hadn't considered the anode - duh. [emoticon]

Thanks!

Dick_B

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Posted: 10/12/21 12:50pm Link  |  Quote  |  Print  |  Notify Moderator

Might want to consider replacing the anode rod yearly with threads wrapped with teflon tape even tho the rod itself has plenty of life in it if it truly is rusting.


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way2roll

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Posted: 10/12/21 01:28pm Link  |  Quote  |  Print  |  Notify Moderator

Dick_B wrote:

Might want to consider replacing the anode rod yearly with threads wrapped with teflon tape even tho the rod itself has plenty of life in it if it truly is rusting.


It was installed with plenty of pipe tape but yes, better safe than sorry.

opnspaces

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Posted: 10/12/21 03:36pm Link  |  Quote  |  Print  |  Notify Moderator

what brand water heater? I believe all Atwoods use plastic with no anode and Suburban uses metal with an anode.


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larry barnhart

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Posted: 10/12/21 10:01pm Link  |  Quote  |  Print  |  Notify Moderator

too many wraps is a bad thing to do with tape. Just need 1/12.

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Posted: 10/13/21 09:24am Link  |  Quote  |  Print  |  Notify Moderator

I use the Teflon thread sealant by Permatex in the squeeze tube. Can’t remember last time I used the tape.

I am on the same anode for five full time years still looks great. I pull it and flush out the tank once a year.


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