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Old 04-18-2014, 08:13 AM   #11
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Don't count the WH out yet.
The plastic plug needs to come out. Use a 6 point socket not a 12 pt and
it will probably come out.
If it rounds off or breaks it can be drilled.
Drill a 1/2 inch hole in the center of the plastic plug.
Insert a hack saw blade. Tape the other end of the blade so it's easier
to hold and not get scratched. Carefully cut -just - till you reach the
metal threads. Do this on 2 or 3 sides. Now you can remove the
pieces. You can probably borrow or rent a 3/4" pipe tap at a good
hardware store or rental place.
Just run the tap in the threads enough to clean them. Don't tap any
deeper.
Alternate- buy a little round rotary wire brush that can be put in a drill.
Wire brush the threads as good as you possibly can.
Once the threads are reasonably cleaned up flush the tank a few times to
get out the debris.
Use PLENTY of teflon tape on the new anode/drain plug when you replace
it.
Even better- get a little "brush in cap" can of Oatey Great White pipe
dope with teflon. Local home center will have it in the plumbing section.

A good RV mechanic can also do this for you.
Good Luck!
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Old 04-18-2014, 08:16 AM   #12
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Dan, that heater is only 2 or 3 years old (2011 model camper) and the corrosion/rust looks worse than some 10 year old units I have seen. I don't have a lot of faith that this will turn out well for SandGmoon.

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Old 04-18-2014, 08:19 AM   #13
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Definitely a suburban and the nylon plug shouldn't be a problem put a socket on it and it will turn out, nylon doesn't rust in so worst it can do is leave a little residue in threads. I just got my unit last fall and the fools at the dealer said the trailer was all winterized yet it still had the anode in and it was rusted because there was no Teflon tape used but I got it out with a socket and a ratchet. Now I have to flush tank because the fools never used the bypass and got antifreeze in hot water tank.
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Old 04-18-2014, 08:27 AM   #14
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Quote:
Originally Posted by mark0224 View Post
Definitely a suburban and the nylon plug shouldn't be a problem put a socket on it and it will turn out, nylon doesn't rust in so worst it can do is leave a little residue in threads. I just got my unit last fall and the fools at the dealer said the trailer was all winterized yet it still had the anode in and it was rusted because there was no Teflon tape used but I got it out with a socket and a ratchet. Now I have to flush tank because the fools never used the bypass and got antifreeze in hot water tank.
Wow. Time to look for a new dealer to service your unit.
The one you have needs to be spanked hard.

We have a dealer review area in the forum.
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Old 04-18-2014, 09:25 AM   #15
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Definitely, use a six point socket. Try repeatedly sharply rapping on the wrench (not too hard) with a hammer. If nothing else works, go out and rent an impact wrench.

Joel
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Old 04-18-2014, 09:27 AM   #16
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Quote:
Originally Posted by Herk7769 View Post
Wow. Time to look for a new dealer to service your unit.
The one you have needs to be spanked hard.

We have a dealer review area in the forum.
Did the dealer review last fall in regards to other things.

Yes they should be spanked, When I got it last fall it was cold enough that I didn't get to check the anode and as soon as it got nice enough I took it out and it had antifreeze on it. Going to try to flush things out and see if there is any damage. Got an extended warranty mostly because it was a used unit and because I couldn't check things like this and a piece of mind. So far everything works right, water heater is my last check because I haven't been able to add water to flush lines and ck.
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Old 04-18-2014, 09:52 AM   #17
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Originally Posted by Great Horned Owl View Post
Definitely, use a six point socket. Try repeatedly sharply rapping on the wrench (not too hard) with a hammer. If nothing else works, go out and rent an impact wrench.

Joel
Its a PVC plug they are trying to remove, Youroo!!
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Old 04-18-2014, 10:13 AM   #18
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Quote:
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Its a PVC plug they are trying to remove, Youroo!!
Right, it's just plastic. In the OP's thumbnail picture, the plug looks WAY too nice. I wouldn't have posted until that plug was all gnawed up from sockets, hammers, and vise-grip pliers.

What's so bad about a bit of antifreeze in the water heater? It gets flushed out when you de-winterize, what's the harm (other than the waste of RV antifreeze)?
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Old 04-18-2014, 04:48 PM   #19
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Quote:
Originally Posted by youroo View Post
Its a PVC plug they are trying to remove, Youroo!!
I agree. I have never had trouble with a plastic plug, but for some reason, the OP did state that the plug was "stubborn."

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Old 04-19-2014, 08:41 AM   #20
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Quote:
Originally Posted by Spikedog View Post
What's so bad about a bit of antifreeze in the water heater? It gets flushed out when you de-winterize, what's the harm (other than the waste of RV antifreeze)?
Some have posted that antifreeze in the water heater can react with the
tank and cause corrosion.
I don't know if that's true but I don't plan to find out either!
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