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Old 04-18-2013, 12:40 PM
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sedanbob sedanbob is offline
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B&M says that installing it fittings down could result in a trapped air bubble in the top of the cooler. I don't know if that's really a concern, or just them covering their butts. The only way I could see that happening would be if the flow through the cooler was very slow, otherwise the vertical tube would fill to the top then the plates would fill, pushing any air out the return tube.

That said, most of the stacked plate coolers I've seen have been mounted with the fittings up.
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