Using Air Pressure - Holiday Navigator 2003 Owner's Manual

To use air pressure to winterize the motorhome you will need access to
an air compressor and an adapter to connect the air line to the water system.
Adapters can be found at any RV supply store. When hooked to the water
lines the pressure should not exceed 40 psi. Higher pressure can damage
the lines.
1. Remove water filter elements from the filters and reassemble the
filters without the elements (see "Water Filter").
2. Drain the fresh water tank by opening the valve located in the
outside water control service compartment of the motorhome.
3. Open the water heater and the low-point drains. Turn knobs to
open the drains. Open low point drains to clear the water out of
the hot and cold water lines. Leave low-point valves open until the
motorhome is used again.
4. Let all the water drain. Turn the pump on and allow it to run until
all water is cleared out of the pump and lines. Turn the pump off.
5. After water lines are drained, hook an air hose to the city water
connection located on the water control panel in the outside service
compartment. Blow out the water lines until no further water can
be seen coming out of the drain lines. Do not exceed 40 psi in the
water lines and faucets
6. Open all faucets (including the outside spigot), one at a time while
the air is on, to clear water from the faucet supply lines. Do not
forget to drain the shower.
7. While the air is on, hold the spray nozzle (located right next to the
toilet) open until the water has quit running. Hold the toilet flush
pedal or handle up until the water has stopped running.
8. Unhook the air hose and close the city water connection.
9. One (1) gallon of RV antifreeze is needed to protect various water
drain lines in the motorhome. Pour 1 pint into both the kitchen and
bath shower drains. Pour 2 pints into the bath sink drain, with
some of the antifreeze going into grey tank to protect the drain
valve. Open the ball valve on the toilet. Pour another 3½ pints into
the toilet, letting the antifreeze run into the black tank to protect
the valve located there. Pour the last pint of antifreeze into the toilet
after you have released the flush pedal. Use a soft cloth to wipe
out the sinks and shower (after the antifreeze is poured in) to
protect the surfaces from stains.
10. Leave the low-point drains open until the motorhome is used again.
WARNING: When draining the low water drain lines and the
water heater be sure the water is not hot. Hot water from the
lines can burn or injure skin.
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N A V I G A T O R 2 0 0 3
Water Systems
WINTERIZING

- Using Air Pressure

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