JimK-NY
NY
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More mystery!!
When I first replaced pigtails and the regulator, after shutting off the tank, the empty indicator on the regulator showed red in 2 hours of less. I think I check that several times. A day or so later, I tested and found the indicator took 6-8 hours to turn red.
The tank has been open for the past 10 days with no other work and no appliances in use. I tried another leak test. I went to bed 14 hours after shutting off the tank and the indicator was still green. This morning after 20 hours and a 15 degree drop in temperature, the indicator was red.
So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes?
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Grit dog
Black Diamond, WA
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It's because you're so intent on finding a solution to your non-issue, it's starting to play mind games with you, lol....
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3 tons
NV.
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“So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes?”
However, note that the temperature is what changed…
3 tons
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time2roll
Southern California
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JimK-NY wrote:So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes? Keep going and this should extend to a few day or a week+. ![[emoticon]](https://forums.goodsamclub.com/sharedcontent/cfb/images/wink.gif "wink")
At these levels the only way is to start isolating items.
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StirCrazy
Kamloops, BC, Canada
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3 tons wrote:“So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes?”
However, note that the temperature is what changed…
3 tons
getting colder should have made it faster not longer.
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3 tons
NV.
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StirCrazy wrote:3 tons wrote:“So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes?”
However, note that the temperature is what changed…
3 tons
getting colder should have made it faster not longer.
How so?? From my perspective, getting colder would decrease pressure, thereby increasing the leak down time.
3 tons
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wolfe10
Florida
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3 tons wrote:
How so?? From my perspective, getting colder would decrease pressure, thereby increasing the leak down time.
3 tons
True, but it would also "shrink" the metal, perhaps allowing for more clearance in the component that is leaking.
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3 tons
NV.
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wolfe10 wrote:3 tons wrote:
How so?? From my perspective, getting colder would decrease pressure, thereby increasing the leak down time.
3 tons
True, but it would also "shrink" the metal, perhaps allowing for more clearance in the component that is leaking.
Well, considering the principle of Occam’s Razor it would seem that a mere change in ambient temperature might have a much greater effect on a liquified petroleum gas (resulting in a decrease or increase in internal tank pressure) than the shrinking of metal components…This is exactly why tanks are fitted with Overfill Prevention Devices which provide sufficient unused volume for expansion (due to changes in ambient temps) to prevent over pressure…
3 tons
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StirCrazy
Kamloops, BC, Canada
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3 tons wrote:StirCrazy wrote:3 tons wrote:“So how does the leak test go from under 2 hours to 6 hours and now to over 14 hours without any changes?”
However, note that the temperature is what changed…
3 tons
getting colder should have made it faster not longer.
How so?? From my perspective, getting colder would decrease pressure, thereby increasing the leak down time.
3 tons
increasing.... faster..., same thing isnt it ? point being that the colder temps should have made the propane shrink, a miniscule amount, but I would have expected the red flag to come on faster , not longer.
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3 tons
NV.
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Oh, so I had misinterpreted your ‘made it faster’ for made the leak faster…
3 tons
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