Drain Systems; Winter Traveling - Airstream TOMMY BAHAMA 2019 Owner's Manual

General Information
Drain System (Lounge Models)
3
1� Lavatory Drain
2� Black Water Tank (Toilet)
3� Galley Drain
4� Gray Water Tank
Drain System (Grand Tour Models)
2
1� Lavatory Drain
2� Black Water Tank (Toilet)
3� Galley Drain
4� Gray Water Tank
3-10
1
2
4
3
1
4

Winter Traveling

Traveling in sub-freezing temperatures will require
certain precautions to protect the plumbing system
and your personal belongings from being damaged by
freezing�
Some states do not allow LPG to be turned on while
moving� While traveling in these states, simply use
your common sense� How cold is it? How long will
it be before you can turn the heat back on? Is the
temperature dropping or rising? Remember, when
driving at 50 MPH, the wind chill factor will cause the
interior of the touring coach to cool much faster than a
touring coach that is parked�
1� You must have a plentiful supply of propane gas as
the heat from the furnace warms the touring coach
and keeps the fresh water lines and black water
holding tank from freezing�
2� If your stay is longer than overnight, you should
endeavor to have 120-volt electricity available� The
house battery, fully charged, will not last more than
about 15 hours in freezing weather, less (4 hours)
with use of the tank heating pads� Of course, you
can run your generator to recharge the battery, or
even use the generator continually� Keep an eye
on your LP Gas or engine fuel according to the
type of generator your touring coach is equipped
with� Since the generator starts off the house
battery, it is recommended to start the generator
prior to running the battery down�
3� Minimize use of electricity if 120-volt power source
is not available�
4� Leave cabinet doors, wet bath doors, and
wardrobe doors slightly open at night to allow
circulation of air in and around all components�
5� Save 12-volt power by using non-toxic RV-
approved antifreeze in gray water holding tank
instead of heating pad to prevent freezing� Quantity
of antifreeze needed will vary with ambient
temperature and the amount of liquids in tank�
6� For extended stays in cold weather, insulate all
water lines outside the touring coach� You should
remember that low temperatures in combination
with high winds cause an equivalent chill
temperature much below what your thermometer is
reading� For instance, with an outside temperature
of zero degrees, and the wind velocity of 10 miles
per hour, the equivalent chill temperature is -20°F�
7� Remember to remove and drain the exterior
shower faucet to prevent freeze damage�
2019 Tommy Bahama TC