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...
Yep, I agree with the tank quantity. check your information panel and see if you have three tanks, then you should have three valves. contact manufacture and get them to help. Good Luck & Be Safe ! ! !