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Old 10-28-2020, 06:28 PM   #1
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Camco Hot Water Tank Plug Failure

So my CAMCO brand plug failed out of the blue about 9 months after changing it. I saw water dripping out of the metal outside door of my hot water heater, opened it, and 2-3 tiny holes in the top of the plug were spraying water out 3-4 feet. (We were on city water with normal pressure.)

Would not have been surprised seeing a leak at the threads but thought this was pretty bad. Compared the CAMCO plug to an original plug I had with my tank and it was much thinner thus less quality.

Can I get these at a plumbing supply place or is it best to order name brand? As many issues as an RV can have, I don't want to give it any more opportunities!
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Old 10-28-2020, 06:50 PM   #2
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Go to Lowes or Home Depot and get a brass plug. Make sure the internal threads are cleaned up and use some Teflon tape or potable water pipe dope on the male threads.
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Old 10-29-2020, 09:07 AM   #3
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What brand of water heater do you have? It makes a difference one may take a nylon plug and the other an anode type plug.
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Old 10-29-2020, 09:40 AM   #4
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What brand of water heater do you have? It makes a difference one may take a nylon plug and the other an anode type plug.
It is the simple nylon plug. My point is where to buy a quality plug and not a cheapie thatís fails like mine did.
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Old 10-29-2020, 09:52 AM   #5
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Originally Posted by ArkRVHog View Post
It is the simple nylon plug. My point is where to buy a quality plug and not a cheapie that’s fails like mine did.
Any quality plumbing store can fix you up with a good nylon plug. (not necessarily the big box stores)

I do have to ask on a 2018 model, why you replaced the original plug? (and now the replacement has failed)
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Old 10-29-2020, 10:18 AM   #6
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I was under the impression that the forester came with a suburban wh. with that said it may be like many things at FR same models have different equipment.
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Old 10-29-2020, 04:53 PM   #7
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Atwood Water Heaters use a nylon plug and Suburban use an anode rod plug combo. Do not use a Brass Plug in an Atwood heater, the two dissimilar materials aluminum and brass with have a bad chemical reaction and bind together
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Old 10-30-2020, 04:06 PM   #8
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aluminum and brass with have a bad chemical reaction and bind together
Itís actually an electrical reaction. Brass is more cathodic than aluminum, so you will get corrosion where the two dissimilar metals touch. It is particularly bad when an electrically-conductive liquid (water) is added to the mix.

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Old 10-30-2020, 04:13 PM   #9
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Any quality plumbing store can fix you up with a good nylon plug. (not necessarily the big box stores)

I do have to ask on a 2018 model, why you replaced the original plug? (and now the replacement has failed)
So in full disclosure, I lost the original when removing the plug and failing to release the pressure first (newbie mistake) and it blasted into a heavy patch of my yard...but I found it a few weeks later! Glad I was working to one side of the plug when that happened.

Just really surprised to see that Camco plug fail like it did with the tiny, tiny "fissures" in the top letting the water spew out.

And thus I was able to compare the two (original vs Camco) and see the Camco build was a lot thinner. There's a lot of pressure in those little tanks!
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Old 10-30-2020, 04:20 PM   #10
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As the OP, thanks for the great input. Now let me ask if there's any simple and easy to use tool for the Atwood HW heater to get to that darn plug? (Those that have one know the configuration and the plug is somewhat blocked with parts of the heater.) Yes, I've used an extension on my ratchet set but wish there was something I could just keep right there with the HW heater to use as needed. Thx again.
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