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Open Roads Forum  >  Tech Issues

 > Changing Atwood water heater plug to brass

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wa8yxm

Wherever I happen to park

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Posted: 12/30/19 05:36am Link  |  Quote  |  Print  |  Notify Moderator

The brass plug will work. for a while. but from chemistry class you should recall that dissimilar metals can react with each other badly and that is why the plug is NYLON. NOW there is an option. I think it's CPCV but please do not quote me on that. it's rated for the temps you find there. I've tried it with "Mixed" results (sometimes it seals sometimes it leaks) You use a nipple made of this stuff. then a 1/2 inch quarter turn valve then a piece of any pipe you like (Irrigation plastic pipe works very well or a brass plug

The nipple goes to the tank
The valve goes on the nipple
The plug goes in the valve's other end (Brass to brass) most of the time
When you drain the tank you first remove the plug, then screw in the plastic irrigation pipe (Cheapest **** you can get for this job) oh say 6-8 Inches long (this hauls the drain water past the side of the RV in case you wonder) then STAND CLEAR the drain and open valve.

First time I did this it worked very well
No joy since,


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Hondavalk

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Posted: 12/30/19 06:27am Link  |  Quote  |  Print  |  Notify Moderator

I have used a brass plug for years with no issue. I do wrap the threads with Teflon tape. Don't know if that makes a difference.





MDKMDK

Canada

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Posted: 12/30/19 07:09am Link  |  Quote  |  Print  |  Notify Moderator

Just do what works for you. Teflon tape will help, reduce metal to metal contact if that's a concern. Brass is also a soft metal (use in brushes used for cleaning other metals). Installed caerfully, should be fine.


Mike.
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BFL13

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Posted: 12/30/19 07:31am Link  |  Quote  |  Print  |  Notify Moderator

MrWizard wrote:

I am considering a brass plug, as my plastic plug and delicate Alu threads are leaking, even with Teflon tape on the plastic plug

Going to follow this thread

Maybe some pipe dope on a new plastic plug ?

I do drain once a year , and would prefer for it to be removable


Don't know if this is the same problem, but had an ageing leaky plastic plug that was also squishy in the socket turning it, no sharp corners anymore. New plastic plug fixed all that.


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DFord

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Posted: 12/30/19 09:03am Link  |  Quote  |  Print  |  Notify Moderator

My Solution:
[image]
Works great for me. No tools required. I can still slip a plastic tube through the pipe to siphon out the water always left in the bottom of the water heater and often get some of the calcium flakes that end up on the bottom of the tank.


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msmith1199

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Posted: 12/30/19 09:09am Link  |  Quote  |  Print  |  Notify Moderator

Wow, I kind of figured there would be lots of info on this topic. I went ahead and ordered the brass plug. Sounds like it will work for what I want it to do. Thanks for the info.


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2oldman

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Posted: 12/30/19 09:44am Link  |  Quote  |  Print  |  Notify Moderator

DFord wrote:

Works great for me. No tools required.
Nice idea.

dougrainer

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Posted: 12/30/19 10:12am Link  |  Quote  |  Print  |  Notify Moderator

Look at DE Fords post. THAT is the BEST way to do it. IF you leave a metal plug in the Atwood, it will "Gaul" after a few years even with Teflon tape. That means the Metal plug will be welded to the threads and almost impossible to remove. Atwood Tanks need frequent flushing for mineral build up, depending on your water quality. Having that fitting with a petcock REDUCES the opening for flushing out debris. Doug

ksg5000

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Posted: 12/30/19 12:03pm Link  |  Quote  |  Print  |  Notify Moderator

DFord wrote:

My Solution:
[image]
Works great for me. No tools required. I can still slip a plastic tube through the pipe to siphon out the water always left in the bottom of the water heater and often get some of the calcium flakes that end up on the bottom of the tank.


Nice. What metal is the pipe?


Kevin

TurnThePage

North ID

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Posted: 12/30/19 01:23pm Link  |  Quote  |  Print  |  Notify Moderator

X2!! Share please!

A little surfing revealed this chart. Doesn't look very promising to me.

[image]


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