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Old 02-10-2020, 01:46 PM   #5
ChuckS
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Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,013
I’d bet you have dual 44 gallon grey water tanks.. their spec sheet on Keystone website shows 1 but it’s just not fathomable to me. I’ll bet if you look behind one of the tires or under carriage there will be another pull handle for an additional 44 gallon tank

The bathroom sink should be the only thing that is plumbed into black tank besides toilet. I’ve seen several that had to argue and get the plumbing corrected

Work with Keystone customer relations and hopefully they will work with you to correct the issue
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