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Old 04-27-2015, 06:42 PM   #43
3 Rivet Member
2013 30' Flying Cloud
Cincinnati , Ohio
Join Date: Sep 2012
Posts: 191
Thanks for your encouragement Idroba. I took the regulator apart from the main gas line to the trailer last night, trying to think what I would replace. Replacing the propane line from the trailer to the regulator looked too difficult for me - getting the 2 line clips off the A frame that are riveted in would be a chore. I decided just to put everything back how it was - and I needed to buy the thread goop for a gas line since I had removed the line from the regulator. $15 for a can much too large, even if I was going to only use it once. So I put everything back together, and did a soap test to check the connection I had just put back together. It was fine. While I was at it, I put some soap on the pigtail connections to the tanks (which I had not done anything with). You can tell where this story is going, right? I found my leak! One pigtail was fine, the other blew bubbles. It wasn't exactly a bubble machine, but I did it 3 times in a row because I couldn't believe my eyes. I had looked several times in the past 2 years, and missed the leak, assuming it was leaking then, which I do. I did use a different soap this time. Previously I just used dish soap in water. This time I took the foamy soap dispenser from the bathroom. It worked.

So I got a second use out of my $15 purchase, and my propane is no longer leaking. Kind of obvious - the most likely source of a leak is the lines, not the regulator.

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Old 04-27-2015, 06:53 PM   #44
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
I am glad you found the leak. I had not mentioned the pigtails but as you found, yes, they can leak. They are under a much higher pressure from the tank to the regulator than the gas pressure after the regulator.

I have had them leak and replaced them, and found the new ones also leaked. I took one back twice, the first new one was defective. The RV parts place just handed me another one from stock and said they had a lot of trouble with leaking brand new pigtails. So, check your new ones too!

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Old 05-01-2015, 12:00 PM   #45
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Fort Worth , Texas
Join Date: Nov 2006
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A propane dealer has a better RV selection, overall, as well as better quality components if one is willing to pay for them.
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 12-cpm solo, 19-cpm towing (fuel)
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Old 05-01-2015, 12:29 PM   #46
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1976 31' Sovereign
Oswego , Illinois
Join Date: Jan 2007
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One propane dealer that I use doen't have any thing but propane other dealer only has reg. for house or farm use no Rv. but will order. I shop Ebay for pig tails other hoses reg. & make sure they are for Rv. use, plus big box stores have propane stuff, as for better quality name brands same where ever pur.
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Old 05-02-2015, 06:57 AM   #47
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1999 34' Excella
Currently Looking...
Hillsboro , Texas
Join Date: Feb 2013
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"New" doesn't always mean better. Our 1999 had original and the lines were inflexible. The regulator was replaced with "switchable design" similar to original. Twice. The "new" ones developed leaks within a year.... Not too good. The RV place just buys and stocks them. One sales guy said, "I guess they aren't made for heavy use in Airstream." I thanked him and walked out.

We had the hoses also fail... Just "weeping" the LP.... So we replaced and monitor carefully.

So, yes, maintenance on your LP system is important.

Peace and Blessings..
WBCCI# 30676
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