pappaone
Colorado
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I forgot to mention that it looks like I nicked the threads a little diggig it out, does any one know what size tap I need to dress them up.
Thanks
Rich
Rich & Jennie(mate for 50 yrs)
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2004 Sea Breeze 1341
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southernkilowatt
North Carolina
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I THINK its a 1 inch NPT. I would bet any nearby machine shop would have what you need and let you borrow it, or at least charge a nominal fee.
I wouldnt go out and buy a tap just to chase threads one time.
my .02 worth
Dave
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enblethen
Moses Lake, WA USA
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An Atwood is 3/4 national pipe thread. I would get a pipe plug in black iron to chase the threads. It is much cheaper then a tap.
Bud
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pappaone
Colorado
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enblethen wrote:An Atwood is 3/4 national pipe thread. I would get a pipe plug in black iron to chase the threads. It is much cheaper then a tap.
southernkilowatt wrote:I THINK its a 1 inch NPT. I would bet any nearby machine shop would have what you need and let you borrow it, or at least charge a nominal fee.
I wouldnt go out and buy a tap just to chase threads one time.
my .02 worth
Dave
Thank you both for the great advice, I didn't think about either one. I knew if I asked on this forum ,I'd get the correct answer.
Rich
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Troubleshooter
Anchorage, AK
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If you are talking about the drain plug in a Atwood water heater, it is a 1/2" National Pipe Thread. Granted the opening is nearly 3/4" in diameter, but it is NOT a 3/4" NPT. Pipe sizing is based on the inside diameter, and not the outside diameter.
Only One Old Fellow's Opinion
Bill
2002 Discovery 3126E CAT
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Jim&Peg
Central Ohio
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Troubleshooter wrote:If you are talking about the drain plug in a Atwood water heater, it is a 1/2" National Pipe Thread. Granted the opening is nearly 3/4" in diameter, but it is NOT a 3/4" NPT. Pipe sizing is based on the inside diameter, and not the outside diameter.
Only One Old Fellow's Opinion
This is the correct answer.
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pappaone
Colorado
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Troubleshooter wrote:If you are talking about the drain plug in a Atwood water heater, it is a 1/2" National Pipe Thread. Granted the opening is nearly 3/4" in diameter, but it is NOT a 3/4" NPT. Pipe sizing is based on the inside diameter, and not the outside diameter.
Only One Old Fellow's Opinion
to be on the safe side I'll get a new plug 1st and compare it to the pipe size. thanks again for all the great information.
rich
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javaseuf
California's Gold Coast
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Joined: 03/30/2005
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pappaone wrote:enblethen wrote:An Atwood is 3/4 national pipe thread. I would get a pipe plug in black iron to chase the threads. It is much cheaper then a tap.
southernkilowatt wrote:I THINK its a 1 inch NPT. I would bet any nearby machine shop would have what you need and let you borrow it, or at least charge a nominal fee.
I wouldnt go out and buy a tap just to chase threads one time.
my .02 worth
Dave
Thank you both for the great advice, I didn't think about either one. I knew if I asked on this forum ,I'd get the correct answer.
Rich
Really?
One said 1" and the other 3/4". which one is the "correct answer"? 
Steve
2007 Springdale 291RKL
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"Nobody knows how we got to the top of the hill, but since we're on our way down, we might as well enjoy the ride". ("The Secret Of Life", James Taylor).
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enblethen
Moses Lake, WA USA
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I am incorrect. 1/2 for Atwood
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BULLETLS1
Guatemala, C.A. (NOT Dakotas, Wyoming, Iowa...)
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if youre going to buy a plug buy one with anode:
bought one like this and fitted ok at the instant...dont forget the PTFE tape!
I I HAVE A DATE WITH ETERNITY, AND I DON´T WANT TO BE LATE!
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