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Old 04-17-2014, 01:50 PM   #1
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Stubborn water heater drain plug

We bought our Flagstaff trailer late last Summer. When Winterizing, I was unable to get the 3/4" PVC plug unscrewed from the hot water drain without risking stripping it. Does anyone have any recommendations on removing this stubborn plug?
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Old 04-17-2014, 02:03 PM   #2
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Looks like someone has put the wrong thing in the wrong place. The plug your looking at should be an anode rod and not PVC. I am not sure about the PVC plug but the anode rod has an 1 1/16 socket to remove it.
If yours is indeed PVC I say put a socket on it and give 'er. If it strips you may have to drill it out. The hot water temps and the heat from the propane has probably melted it in place somewhat.
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Old 04-17-2014, 02:06 PM   #3
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If it's a Suburban tank it's an anode rod. If it's an Atwood I believe it's a drain plug.
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Old 04-17-2014, 02:10 PM   #4
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Is that an Atwood?

PB Blaster, let it sit for a few min and then try again.
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Old 04-17-2014, 02:10 PM   #5
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Remove plastic plug, flush water tank with water to remove debris and replace with anode rod.

Suburban Anode Rod Replacement - Suburban 232767 - Water Heaters - Camping World
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Old 04-17-2014, 02:21 PM   #6
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Quote:
Originally Posted by Ford Idaho View Post
Is that an Atwood?

PB Blaster, let it sit for a few min and then try again.
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Old 04-17-2014, 02:24 PM   #7
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Quote:
Originally Posted by SandGMoon View Post
Flagstaff
The water heater, not the trailer...
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Old 04-17-2014, 02:32 PM   #8
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The water heater, not the trailer...
Sorry for the "noob" answer. I don't know what the water heater is. I'll have to check it when I get there.

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Old 04-17-2014, 02:43 PM   #9
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Sorry for the "noob" answer. I don't know what the water heater is. I'll have to check it when I get there.

Great, if it is an Atwood then just us the PB Blaster or some WD-40 od liquid wrench on the threads and let it soak and then try to remove it.

Its plastic and cheap so if you bust it is not a biggy just buy an other one.

If is a Suburban and you bust it still not a biggy as you need to have an Anode rod as posted above.
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Old 04-18-2014, 07:05 AM   #10
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That is a Suburban water heater with the iron tank.
That unit needs an anode.

I assume since it has a PVC plug instead (for a while) the interior of the tank is most likely shot. Corrosion/rust at the anode and electric element ports, the cold water inlet and hot water outlet port, and the pressure relief valve is a pretty sure indication that the porcelain lining of the interior is most likely compromised (cracked from rust).

I am pretty sure the reason the PVC plug was installed was because the water routinely used had high levels of iron or sulphates and destroyed the OEM anode quickly. Never checked, the socket started to leak and rusted out the threads. The original owner did not want to replace the heater so the anode was replaced with the soft plastic plug that could be tightened enough to seal.

Be prepared in case that is so. Water heaters are not ALL that expensive, but can be beyond the "shade tree" mechanic's ability to install.



http://www.americanrvcompany.com/Sub...FRQaOgodzT4AMA

PS - save your door since it does NOT come with the replacement unit!
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