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Old 11-13-2021, 06:06 PM   #1
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XL Storage Box Condensation

Does anyone have condensation problems on tools kept in the XL Storage Box?

I've done some searches on the forum and don't seem to come up with anything. I certainly seem to be having this problem. I thought sure it was something I didn't secure and it leaked. After taking everything apart, the only explanation I can come up with is...condensation on metal tools.

...and yup, I'm a total newbie on this stuff!

Thanks! Em -
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Old 11-13-2021, 06:11 PM   #2
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It's normal-ish, in that regualr temperate changes will make cold/metal objects condense water from the air. It does suggest you have excess moisture in the van. If it's from parking long-term, you can use an RV chemical-dehumidifier. But if you drive regularly, you probably have water seeping in somewhere, possibly making the carpet or subfloor wet. Front windshield corners are a common sources. Worn out door seals, old window seals etc are all culprits.
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Old 11-13-2021, 06:23 PM   #3
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Thanks for your quick reply carringb!

The wetness is isolated to the metal tools in the XL storage box; just on that one side of the box. We've been using the van, that said, we're definitely in new condensation weather with a season change that we haven't seen since April when we got the van.

Any clever tricks you've seen folks use on keeping tools in the box to prevent condensation and/or rust?
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Old 11-13-2021, 06:52 PM   #4
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Thanks again carringb, didn't know that chem-dehumidifiers were out there!

After a google dive, I just ordered some of these from West Marine: https://bit.ly/2YI2UBR

Because they're bags, it looks like I may be able to pack one in each of my tool bags. That and perhaps a light coat oil on the tools with periodic maintenance could work.

Best, Em -
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Old 11-13-2021, 07:09 PM   #5
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Just remember to empty the dehumidifier before each trip! I’ve only use the dome-top plastic cans, so maybe the bags are leak resistant? Anyways, the solution that forms is a corrosive salt. I think they use calcium chloride or magnesium chloride. Does bad things when you forget to empty it and it dumps all over the bathroom cabinet….
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Old 11-13-2021, 07:14 PM   #6
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Probably not the answer for your rear storage box, but I use the Caframo in the Van when its not being used - also worked great in the cabin of our boat.

https://www.amazon.com/Caframo-Limit...UMIDIFIER&th=1
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Old 11-13-2021, 08:19 PM   #7
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Thanks Felix and carringb! Interesting plug-in options and the chloride compound warning is much appreciated!

Best, Em -
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Old 11-13-2021, 10:36 PM   #8
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Quote:
Originally Posted by Twoxentrix View Post
Probably not the answer for your rear storage box, but I use the Caframo in the Van when its not being used - also worked great in the cabin of our boat.

https://www.amazon.com/Caframo-Limit...UMIDIFIER&th=1
I use the same when I'm plugged into shore power.
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Old 11-14-2021, 01:10 AM   #9
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I was thinking about our under floor storage and moisture then recalled our box is polypropylene. You might also try a trunk liner material to line the inside. Not sure if it is better rubber backed or just a robust thickness.

I would definitely check the seal between the box and underside of the van. In San Jose I would not expect humidity related issues. Maybe using bright lights under the van around the box (at night) will reveal seal gaps when looking into the box.
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Old 11-14-2021, 11:10 AM   #10
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IIRC mine has a drain hole but could be wrong. Haven't seen the bottom of it since 2006 plus each year might be different.
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