I own a 2008 c/r crossfire toyhauler mk-33. On the passenger side right next to the door, are two water tank access (fill) openings. They are directly above one another. Obviously they are both for water, but which tank does what? I have to fill the bottom tank first to have any water for the water pump to work correctly. If I fill only the top tank, then the pump runs non stop with water only spitting from the faucets.
I have read the manuals I have, and they do not address this issue. So my questions are:
What is the primary function for each tank?
Why won't the top tank allow the water pump to operate?
On another topic, can I run the furnace while driving, so it will be warm when we arrive at our destination?
I am relatively new at this, so please give detailed answers. I have not had the underbelly cover off yet, so I am running blind. ( so to speak )
Thank You in advance for your help>
Steven & Darlene Rees (Jacob & Nicholas)
2011 Chevy Siverado 2500w/Duramax Diesel
2013 Elevation 3612