Hello all, Have purchased a 2004 Keystone Montana. The sink keeps stopping up. My grey water valve is open. Shouldn't this water go right out? My black tank needs pumped which makes me wonder if th...
My in-laws just bought an 03 Montana. There is a second gray tank the valve is located either between the axles or just in front of the front. I cant remember. You should have a total of 3 handles to open