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10-01-2020, 08:38 AM
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#1
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New Member
None
, New York
Join Date: Jul 2014
Posts: 2
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Is it safe to fill my LP tank...
2006 Airstream Interstate
This 2 foot long copper tube (with a plastic cap on one end) fell off of my LP tank. It was screwed in by a brass connection that broke (see yellow circle in image 3).
I'm wondering if it's safe to fill my tank while it's missing this part. And I'm wondering what the purpose of the part is. My best guess is that it vents propane if the tank is overfilled.
Thanks for any advice and guidance.
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10-01-2020, 08:47 AM
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#2
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Rivet Master
2022 25' Flying Cloud
NCR
, Ontario
Join Date: Feb 2017
Posts: 3,085
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Lp tanks have a 10 year life. Any older, get it checked or replace with new.
Is it worth the risk of a leak or worse
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10-01-2020, 11:59 AM
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#3
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Rivet Master
2006 23' Safari SE
I'm In
, Kentucky
Join Date: Dec 2012
Posts: 4,251
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Looks like a pressure relief valve pipe, in case of an overfill. I'm not familiar with Interstates but pictures I've found show the fill is on the curb side of the unit. Since it has a plastic cap on one end it would make sense that it's a relief valve pipe. If the pipe is broken you might have someone replace the connector on the line or replace the entire line. Look for a local RV dealership repair service.
If the connection in the tank is broken you would need to replace the tank.
__________________
-Rich
Rich & Yvonne
2006 Safari SE -Dora-
2004 4Runner SE 4.7L V8
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10-01-2020, 12:05 PM
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#4
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Rivet Master
2014 20' Flying Cloud
Sag Harbor
, New York
Join Date: Jun 2015
Posts: 17,523
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Welcome to the forum!
You will find a more focused audience in the Sprinter etc. sub-forum, where issues like this often require a "non trailer" approach IMO.
https://www.airforums.com/forums/f240/index60.html
Good luck,
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10-01-2020, 12:15 PM
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#5
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,702
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The rules are pretty strict on propane and the people who fill tanks are supposed to follow them. Of course, many don't. Depending on where you go, you my be refused propane if there is a visible issue. They are also supposed to check the certification or recertification dates. I believe you have to recertify every 12 years in the US and 10 in Canada. Your tank should have been recertified by now.
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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10-01-2020, 01:44 PM
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#6
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Rivet Master
Airstream - Other
2016 Interstate Grand Tour Ext
Bosque Farms
, New Mexico
Join Date: Jan 2004
Posts: 7,026
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Gene, the recertification requirement obtains only for DOT cylinders, not to ASME cylinders. Fixed-mount tanks on mohos are ASME.
That said, if something is visually wrong with a cylinder -- physical damage, deep corrosion, whatever -- licensed fillers know to reject requests to refill. OFten enough, however, the tank itself is not in an easily visible location. That includes the Interstate.
Lynn
Quote:
Originally Posted by Gene
The rules are pretty strict on propane and the people who fill tanks are supposed to follow them. Of course, many don't. Depending on where you go, you my be refused propane if there is a visible issue. They are also supposed to check the certification or recertification dates. I believe you have to recertify every 12 years in the US and 10 in Canada. Your tank should have been recertified by now.
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__________________
ACI Big Red Number 21043
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10-02-2020, 11:34 AM
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#7
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4 Rivet Member
1999 28' Excella
Lake Mary
, Florida
Join Date: Mar 2008
Posts: 255
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Take it to LP tank retailer, they will let you know what it is for. And your tank looks pretty rusty -fully depreciated and in dire need of replacement.
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10-03-2020, 01:23 PM
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#8
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,702
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Quote:
Originally Posted by eubank
Gene, the recertification requirement obtains only for DOT cylinders, not to ASME cylinders. Fixed-mount tanks on mohos are ASME.
That said, if something is visually wrong with a cylinder -- physical damage, deep corrosion, whatever -- licensed fillers know to reject requests to refill. OFten enough, however, the tank itself is not in an easily visible location. That includes the Interstate.
Lynn
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Lynn,
Thanks for the correction. My take from this is that you replace the tank in this case after it wears out and tell that from a visual inspection. How many years do they usually last?
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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10-03-2020, 06:10 PM
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#9
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Rivet Master
Airstream - Other
2016 Interstate Grand Tour Ext
Bosque Farms
, New Mexico
Join Date: Jan 2004
Posts: 7,026
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Valves may wear out in the most realistic sense. Moving parts, rubbing against one another. The cylinders themselves don't just wear out UNLESS they are corroded, dented, bent, or otherwise beat up.
Well, sort of. I did finally reject a tank from the local preacher-man one time. It was his cylinder for his outdoor grill, and he kept the cylinder itself directly under the grease drain. It was the nastiest, filthiest thing you have ever seen, and I didn't want to touch it. Told him that I can no longer see the certification numbers and recommended that he do a trade-in at Walmart to start with a clean cylinder again.
Lynn
Quote:
Originally Posted by Gene
Lynn,
Thanks for the correction. My take from this is that you replace the tank in this case after it wears out and tell that from a visual inspection. How many years do they usually last?
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__________________
ACI Big Red Number 21043
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