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Open Roads Forum  >  Tech Issues

 > Plug for aluminum hot water heater

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Beverley&Ken

Tottenham,Ontario

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Posted: 05/13/12 07:31pm Link  |  Print  |  Notify Moderator

crimmps49 wrote:

TY--the previous owner had quite a few things that it looks like he tried to do himself. This plug has the threads pretty worn off, so we will look for a new plastic one. Anyone know where to pick one up?


Any RV store or possibly Walmart will have them, also check the RV department in box stores or the campground store. Two pack on an orange card may $5.00 .

Beverley and Ken


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Dutch_12078

Great Sacandaga Lake, NY

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Posted: 05/13/12 08:10pm Link  |  Print  |  Notify Moderator

Beverley&Ken wrote:

crimmps49 wrote:

TY--the previous owner had quite a few things that it looks like he tried to do himself. This plug has the threads pretty worn off, so we will look for a new plastic one. Anyone know where to pick one up?


Any RV store or possibly Walmart will have them, also check the RV department in box stores or the campground store. Two pack on an orange card may $5.00 .

Beverley and Ken

You can also use standard CPVC 1/2" pipe plugs from any hardware store. About 50 cents each.


Dutch
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south

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Posted: 05/13/12 08:53pm Link  |  Print  |  Notify Moderator

Like another reply use teflon tape on the plug. Even using a new nylon plug. I always carry a spare. never use another metal including aluminum on an aluminum tank or for that matter any other metal.
Galavonic corrossion and mineral build ups cause problems. Another reason to filter all water going into the rig.

allen rvtech

chilliwack bc

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Posted: 05/13/12 10:43pm Link  |  Print  |  Notify Moderator

USE A BRASS PLUG IF YOU WANT,REMEMBER TEFLON.
OR BETTER YET GO GET AN ANODE ROD PLUG TO STOP ELECTROLASIS.AND YES THEY MAKE THIS PLUG OUT OF STEEL WITH THE ANODE ATTACHED TO IT

enblethen

Moses Lake, WA

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Posted: 05/14/12 07:13am Link  |  Print  |  Notify Moderator

Anodes are not necessary in the aluminum Atwood tank.
It is best not to use any type of metal into the tank.


Bud
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wolfe10

Texas

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Posted: 05/14/12 07:24am Link  |  Print  |  Notify Moderator

allen rvtech wrote:

USE A BRASS PLUG IF YOU WANT,REMEMBER TEFLON.
OR BETTER YET GO GET AN ANODE ROD PLUG TO STOP ELECTROLASIS.AND YES THEY MAKE THIS PLUG OUT OF STEEL WITH THE ANODE ATTACHED TO IT


Let's see:

Atwood does not recommend anodes and does not sell them (if they did they would sell them as an additional profit center).

Steel(hard)threads screwed into Aluminum tank(soft)????

Electrolysis is a galvanic reaction between different metals. With an aluminum tank and nylon drain plug, the only metal is that found in the water-- an infinitesimal amount (hopefully).


Brett Wolfe
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1fastdad

mo.

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Posted: 05/14/12 07:29am Link  |  Print  |  Notify Moderator

The problem with a metal plug of any kind is the build up of material on the threads that extend into the tank will damage the threads in the tank when it is removed. These materials do not build up on nylon plugs.

mlts22

Austin, Texas

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Posted: 05/14/12 09:21am Link  |  Print  |  Notify Moderator

If the water heater is an Atwood, no way I would ever use an anode rod. I've heard of too many happenings of it fusing to the threads (requiring replacement of the water heater), and other nasty items.

A Suburban water heater which is a porcelain lined steel container is a different beast altogether. That does require an anode rod to ensure the tank doesn't get eaten away.

crimmps49

Wisconsin

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Posted: 05/14/12 09:49am Link  |  Print  |  Notify Moderator

Ours is an Atwood and does not have a rod. Hubby found a plastic plug as the threads were stripped/worn on the old one. Couple wraps of teflon tape and all is good now. TY

paulcardoza

Southeastern Massachusetts

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Posted: 05/14/12 11:23am Link  |  Print  |  Notify Moderator

Grainger has a 10 pack of them for $4.50

http://www.grainger.com/Grainger/THOGUS-Plug-1VTH7?Pid=search


Paul & Sandra
New Bedford, MA
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