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phenrichs · 05-14-2012, 12:21 PM

I have a 2012 Sprinter 311BHS. It has 3 tanks. 2 grey and 1 black. I am trying to figure out what is draining where.

I want to know exactly which water sources end up in which tank. I am most curious to know what besides the toilet drains to the black tank.
I have suspicions that my bathroom sink drains to the black and perhaps the shower. Our first trip out the black seemed to fill way to fast for a weekend. We didn't use the shower just the toilet and sink. Although part of it may be a teaching issue with our small children and flushing.

05-14-2012, 12:21 PM	#1
phenrichs Junior Member Join Date: Apr 2012 Location: South Dakota Posts: 18	holding tank plumbing question I have a 2012 Sprinter 311BHS. It has 3 tanks. 2 grey and 1 black. I am trying to figure out what is draining where. I want to know exactly which water sources end up in which tank. I am most curious to know what besides the toilet drains to the black tank. I have suspicions that my bathroom sink drains to the black and perhaps the shower. Our first trip out the black seemed to fill way to fast for a weekend. We didn't use the shower just the toilet and sink. Although part of it may be a teaching issue with our small children and flushing.