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Old 11-06-2006, 10:33 AM   #1
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How do you test the propane system for leaks without using propane?
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Old 11-06-2006, 10:33 AM   #2
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How do you test the propane system for leaks without using propane?
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Old 11-06-2006, 10:38 AM   #3
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Mix up some soapy water, brush it on and watch for bubbles.
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Old 11-07-2006, 06:37 AM   #4
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Buy ths dandy Propane Leak Detector from RVUpgrades.com

It works great and the sale will help support this web site.
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Old 11-12-2006, 06:54 AM   #5
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> test the propane system for leaks without using propane?
</div></BLOCKQUOTE>

If you wanted to test the system without propane, could you utilize an a/c compressor, and use low pressure air? It should indicate with the bubble solution, as propane would.



<sub>Edited HTML Code for quote.</sub>
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Old 11-12-2006, 04:37 PM   #6
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I wouldn't use compressed air. Propane tanks are a sealed vessel. If you get moisture in them you'll have to purge them with a methanol purge. If your tank is empty, I'd just put a bit of propane into it to give it some pressure. That way, you won't be introducing any moisture into the tank.

Then I'd highly recommend that propane detector from RVupgrades that was mentioned earlier. I have one and it works great. It's a lot neater than brushing soap bubbles onto fitting in confined areas and it's much more accurate.
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Old 11-13-2006, 03:27 AM   #7
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Hi -

Not to drag this off-topic for a second (OK, I just did ), but will that detector also work on the newer freon mixes?

I just went to RVUpgrades.com and it said it didn't, but I've also heard about people using propane in their rv/car air-conditioner systems , as a cheap substitute. That made me wonder if the properties are close enough for this detector to sniff freon.

(In case you haven't surmised, I have a pesky freon leak in my toad which has successfully avoided all detection methods so far, and am grasping at straws)

TIA,
Ron
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Old 11-13-2006, 04:05 AM   #8
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">but will that detector also work on the newer freon mixes? </div></BLOCKQUOTE>

I doubt it. The propane sniffer is designed for the fumes of combustible hydrocarbon gases and freon is not one of them. Chemically quite different.

An a/c works by compressing/expanding a gas, so any compressible gas works to some degree. Propane is compressible, so maybe it works (???), but I've never heard of using propane in an a/c, though (fire hazard???).

They make freon (refrigerant) sniffers, though they are a bit expensive. Find an a/c shop that has one or bite the bullet and buy one yourself - should be able to re-sell it and recoup much of your money afterwards. I don't knwo if this is a cheap source, but here's one place to buy: Freon Sniffers

Here's another: Freon test kit
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