195bh hose questions
White lines are indeed fresh/white tank drain and vent. White tank is under your lower bunk. It is only filled with the one fill port on the rear of the unit. Some peeps put some water in it to flush with while traveling, but you will need to run your 12v pump, switch is on the wall. At the campsite with freshwater hookups, the hose is hooked up to the " city connection" port. It should not be filling your white tank unless the check valve on the motor assembly is bad. The blue and red lines sticking out on the door side are " low point " drains. Red is hot water and blue is cold water lines. All they do is drain the camper of fresh water for winter, except for the toilet valve. It will retain water, freeze and bust causing you a repair bill. I would blow my lines out with air leaving the blue and red lines uncapped, drained the water tank and DONE for the winter. We had a new 2014 195bh and recently sold it to upgrade to the 27rkss.
Now I'm going back to looking for my 10mm wrench! 2016 Wildwood 27RKSS
2005 F250 PSD