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Old 07-18-2011, 02:42 PM   #2
Warpath
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Join Date: Aug 2002
Location: N.E. Ohio
Posts: 768
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Usually with Bostrom seats that have 3 air valves, the other 2 control upper & lower lumbar. Not sure why they would have a manual control as well. If you are not finding the air valves doing anything maybe they are not connected????
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2012 Showhauler 28'6" Motorhome on a Columbia w/ 450 Mercedes.
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