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Old 09-26-2002, 10:27 AM   #29
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1963 26' Overlander
1958 22' Flying Cloud
1963 19' Globetrotter
Portola Hills , California
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Yup. That's the stuff. Mine came in light grey. The stuff is a bit tougher than vulkem, so it forms a strong but flexible seal between the outside flange of the water heater and the aluminum of the Airstream.
I've got most of the roll left. e-mail me your address, and I'll mail it to you today.

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Old 11-24-2005, 10:42 AM   #30
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1961 30' Sovereign
st paul , Minnesota
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hex Ijhave recently purchased a 6l and was told there was a soft spot in the floor by th window the previous owner thought it was from the window. But it was from the hot water heater, I ended up removing about 4ft x 1ft of floor from the window back under the hot water heater. Be sure and check the floor after you remove the hot water heater. Tom 30 61

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Old 01-03-2006, 07:42 PM   #31
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I have a 1974 0verlander that I thought about installing a hottrod. the drain plug is 1/4 inch pipe with 20 threads per inch. The hottrodd is 3/8 inch pipe with 13 theads per inch. I can drill out the 1/4 inch bushing and retap using the 3/8 inch with 13 threads per inch. Before I do this, someone please tell me why I don't want to.
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Old 01-03-2006, 07:49 PM   #32
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Is it 1/4" pipe, or 20 threads per inch. It can't be both. Be sure you have the correct taps before you try this. If you tap it 3/8-13 you won't ever get a 3/8" NPT fitting to go into it.

Are you sure the hotrod is 3/8-13, because that isn't a pipe thread, it's a machine thread.
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Old 01-03-2006, 07:58 PM   #33
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maybe it is 1/4 by 20 threads on the drain plug, and the hottrod i was told was 3/8 inch pipe, with 13 tpi. are you telling me that it might possibly be 3/8 inch with 13tpi flare threads?
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Old 01-03-2006, 08:44 PM   #34
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No, I'm saying that 3/8" NPT pipe thread is 18 tpi, not 13 tpi. 3/8-13 NC is a screw thread, not a pipe thread.

I don't remember the threads on a flare fitting.

The best bet would be wait until you have the hotrod in your hands, measure it with a thread gauge, then tap the bushing. I wouldn't trust what someone tells you over the phone in a case like this.

Before you order it, see if the bushing is big enough to take a 3/8" pipe thread, it's a lot larger than a screw thread. 3/8 inch pipe is just a little less than 3/4" (actual .675") in diameter.
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Old 01-08-2006, 08:08 PM   #35
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well, i just got up from my chair with lights, and a pair of reading glasses. The drain plug is a 1/8 inch pipe threads, with 27 threads per inch. The hott rod is 1/4 inch pipe threads. The solution is the predrill the drain with a 7/16 inch bit, and retap to the 1/4 inch pipe threads. Or, just put everything back together and wait until the 30 year old unit goes out completely.
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Old 06-18-2007, 06:47 AM   #36
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1992 21' Sovereign
ft mitchell , Kentucky
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I need to install a new water heater in my trailer pronto. Does anyone know a sealer I can buy at Lowe's or HOme Depot that will do the job?
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Old 12-18-2014, 09:13 AM   #37
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1995 34' Limited
1978 23' Safari
Napanee , Ontario
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Originally Posted by BobbyW View Post
Yes, that is the only difference. Here is a diagram from the manual. I can email you a clearer one if you like.

Hi Bobby,

Would you kindly email a copy to me too. My email address:

Appreciate it.


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