Heartland Owners Forum http://manuals.heartlandowners.org
Landmark 365 User Guide V1.1.pdf P a g e | 26 Version 1.1, March 10, 2016
When closing the canister, make sure the rubber O-ring/gasket is placed correctly and is not pinched.
Hand tighten until snug. Before replacing the pass-through storage wall, re-open the campground water
faucet and/or turn on your water pump and check for leaks.
Water Pump
The water pump is located behind the UDC, on the floor below the water filter. When winterizing, the
pump will suck antifreeze in and pump it through the water system (but not into the fresh tank or
through the black tank flush systems). However, if using compressed air to winterize, you must take
additional steps to protect the water pump and its filter assembly. Consult our Winterization Guide for
details.
It’s a good practice to check the fittings on the input and output of the pump periodically to ensure
they’re snug. Also check the clear filter bowl on the input side. They should all be hand tight.
Fresh Tank Fill
To fill the fresh water holding tank, the 4-way Anderson Valve must be set to TANK and you must
connect a water source to the water inlet. As the tank reaches full capacity, the water will come out the
overflow fittings on the outside of the frame. There is usually a pex line and 90 degree fitting that
terminate on the door side, just to the rear of the entry steps. There may also be another drain on the
off-door-side. The picture here shows where how the overflow comes out of the tank and through the
frame. Additional PEX tubing is connected to route the water toward the middle of the coach.
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