I am having a hard time believing that the basement is airtight other than the bottom. With plumbing holes, wiring holes, laundry chute, basement doors, etc. etc. etc. my mind cannot justify that the pressure is solely released through the bottom of the unit. I knew the Montanas were built well though!!!!! As always, this is my opinion only as I have been proven wrong many times before (DW will attest to that!!!).
Bingo
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Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.
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