Black Water - Grey Water Questions

[breenw]

I have noted on other posts that various MH's drain differently into the black water or grey water tanks depending on what model you have. We have a 2007 Sun Voyager 8388. Does anyone know on this specific model which sinks/shower drain into which tank???? I have read conflicting reports that the kitchen sink drains into the grey water according to one poster and according to others it drains into the black water tank. Also, this model has 2 bathroom sinks - one on the driver's side the other in the bathroom where the toilet is. Do both of these drain into the black water tank????? Any help would be appreciated!!!