Water Systems --- Section 6
Cayman 2005
223
Cold Weather Storage
If the motorhome is stored where freezing temperatures may occur, drain the domestic fresh water
loop. Drain the fresh water tank by opening the fresh tank drain valve in the storage bay.
NOTE:
Icemakers, water filters, and water heaters use domestic water and should be
drained and stored in accordance with the manufacturer’s recommendation for win-
terization.
WINTERIZATION
The fresh and waste water systems require winterization when the motorhome is placed in storage.
To winterize, use compressed air to evacuate all liquids and/or antifreeze to replace all liquids.
The recommended method of winterizing is using air pressure to remove liquids that may freeze and
cause damage to the various systems and appliances. The lines can then be left empty, or filled with an
FDA approved RV antifreeze. When plumbing lines are drained, antifreeze is not necessary, and the
decision to use antifreeze is left to the motorhome operator.
NOTE:
ONLY FDA approved RV antifreeze should be used to winterize the water systems in
the motorhome.
Using Air Pressure
Access to an air compressor, and an adapter to connect the air line regulator to the water system,
will be necessary. The Air Coupler in the engine compartment, which is part of the Chassis Air System,
may also be used. Air adapters used for winterizing are available at RV supply locations. When
attached to the water lines, air pressure should not exceed 40 PSI. Higher pressure can damage the
lines.
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