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smitty42's avatar
smitty42
Explorer
Jun 27, 2019

Need Help With 1999 Northland Polar 860 Extended Cab

Purchased a 1999 Northland Polar from the children of the owner. They had little or no knowledge about the unit. I found the valve to drain the fresh water tank but can not find any valves to drain the water lines. The hot-water heater has a by-pass for winterizing and there is a two way valve just before the filter on the water-pump that allows you to either take water from the tank or draw water from gallon jugs of RV anti-freeze (have the same configuration in my travel trailer).
It appears that the only way to winterize the water lines is either to open the faucets and blow them out or fill the lines with RV anti-freeze (do this with the travel trailer).
However just wondering if anyone knows if there are drain points for the lines or not.
  • I don't know about the Northland but my experience with truck campers is that there isn't a low point drain. The lines are so short you either fill them with antifreeze or blow them out by opening the faucets, etc. There is a drain on the hot water heater and you just pull the plug and anode rod to drain it. I suspect yours is similar.
  • Well they did give me the owners manual, and it said to open low point drains. However, the manual was generic so who knows. I plan to just us RV antifreeze to flush the lines next fall. Looked at a 1997 Northland (POS) and it had low point drains, wasn't the same model as this one though.
  • My Host has lowpoint drains (accessible from the outside shower/black/grey compartment) and a separate water drain (accessible from the hatch in the basement just inside the rear door step).
  • When I got my new Adventurer a few weeks ago they had to call the factory to find out the low point drains were under the cabover step which is screwed down. Look underneath your camper you might find the drain.
  • I know this is old but I just purchased the same camper last week, my fresh water drain line is in the back kind of under the door. Do you happen to know the size of fresh water and black and gray tanks?