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Old 04-11-2014, 04:43 PM   #1
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Black tank flush w/ 2 toilets

Seriously considering Columbus 3800TH with bath & a half. How does black tank flush work when having 2 black tanks? Is it a selectable single valve with single input, or 2 separate valves & inputs? I realize each has its own slinky connection, but can't tell from literature how flush is set up. Thanks.

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Old 04-11-2014, 07:46 PM   #2
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Location: Roxboro, NC
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My Cardinal 36LE has two black yanks one for each bath. There are two dump connections on the outside. I have a Y fitting to split the sewer hoses so I don't have to switch the hoses. There is also a wash out sprayers on each of the tanks, have two water hose connections for them.
Love my bath an half, kids don't mess up mine.
Hope this helps.

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Old 04-15-2014, 09:38 AM   #3
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*If* the 1/2 bath has a black tank flush (it may not), it would be a second hose connection.
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Old 04-15-2014, 10:38 AM   #4
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I have a Brookstone 340LS by Coachmen with a bath and a half. Each black tank has its own flush inlet. On the picture, the top inlet is for the half bath (dump outlet behind axles). The middle one is the full bath (forward of axles).
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