LP Gas Troubleshooting Tool - Fiberglass RV


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Old 04-26-2007, 07:04 PM   #1
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Here's a link to a tool for measuring the LP gas pressure in your rig.

Donna, maybe it could be added to Helpful Links? Under Appliances or Tools or both...
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Old 04-26-2007, 08:35 PM   #2
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Here's a link to a tool for measuring the LP gas pressure in your rig.

Donna, maybe it could be added to Helpful Links? Under Appliances or Tools or both...
I'll pass the message along Pete...Thanks!

Yo Gina...you're being paged

DONE!
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Old 04-26-2007, 08:56 PM   #3
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This device is really simple to make, and the results were for me reassuring. I made it even more simple by just marking a horizontal line (for no pressure applied) and then one mark five and a half inches above and the same below. My simplified way of attaching the tubing was to drill a number of strategically-place holes and tie the tubing to the board with zip ties. Black ones.

I specifically wanted to know the pressure at the Dometic refrigerator, and there is a plug on it specifically designated for such tests. The fitting between the tubing and the threaded hole was readily available at our local hardware store, no problem. Connected it, turned on the gas, and bingo, 11" of difference in the levels.

As long as you have the board vertical and the initial level along the horizontal line, the device is quite accurate and trouble-free. The only real controversy is centered around what shade of food coloring to add to the water. I chose a deep red, but I'm sure I'll be flamed for this radical choice.
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Old 04-26-2007, 09:56 PM   #4
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I don't care too much about the gas pressure. The regulator is trustworthy. I just can't find a good way to tell what's in the tank. The guage on top is really suspectible to innacurate readings. The stick on the side temp gismo only reads when the gas is flowing. The only way I can get a gesstimate is tapping the side of the tank. Really not rocket science.
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Old 04-27-2007, 01:30 AM   #5
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Thanks for reminding me, I've not tried it, but I recall someone saying that an electronic stud finder will work. Another simple project for my list.

Kurt & Ann K.
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Old 04-27-2007, 12:56 PM   #6
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...The guage on top is really suspectible to innacurate readings...
I suspect that the gauge on top is adequately accurate, but it's just measuring the wrong thing; it doesn't measure level at all.

The gauges which are inserted into the gas line measure only pressure, which in turn depends on the temperature of the propane. Since the temperature drops when vapour is taken from the tank, and drops more severely when it is taken out at a high rate compared to the remaining liquid, the pressure gauge will show a reading when using a tank near empty... and that's the only time you get a useful indication of anything.
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Old 04-27-2007, 01:03 PM   #7
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strategically-place holes and tie the tubing to the board with zip ties. Black ones.
Per,

Black wire ties block the preshometer quotient due to the lack of opaqueality.

Using white ones allows the flow of propanishness more freely, thus giving a more accurate reading.
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Old 04-27-2007, 05:51 PM   #8
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I don't care too much about the gas pressure. The regulator is trustworthy.

Problem is the regulators, while usually trustworthy about delivering the right pressure, often fail to deliver any pressure at all and this device will tell you that.

Donna, thanks for passing the links on to Gina -- I missed the announcement that she was been appointed Keeper of the Links or Mistress of Chainware
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