Water Heater Winterizing; Pump Winterizing; Restoring Service - Airstream TOMMY BAHAMA 2019 Owner's Manual

Water Heater Winterizing

If the touring coach is to be stored during winter
months, the water heater system must be drained to
prevent damage from freezing� Once drained RV non-
toxic antifreeze can be added�
1� Turn off electrical power to water heater�
2� Shut off gas supply to water heater�
3� Turn off pressure pump on water system�
4� Open both hot and cold water faucets�
5� Remove service panel to access system drain
valve� The water heater is located under the
roadside rear lounge�
6� Turn drain valve knob counterclockwise to drain�
7� Follow the Winterizing and Storage instructions for
draining entire water system�
NOTE
System will have to be refilled with water and all air
removed from lines before unit will re-light.
2019 Tommy Bahama TC

Pump Winterizing

Plan your winterizing and storage ahead, and be sure
the holding tanks are drained and flushed thoroughly.
This is very important, as the frozen sewage and water
could seriously damage the system� After dumping the
tanks, add a quart or two of RV, non-toxic antifreeze to
one of the holding tanks and start the macerator pump�
Run the pump until the RV, non-toxic antifreeze comes
out the end of the pump hose� Leave dump valves
open� As extra protection, open the toilet valve and add
a quart of RV, non-toxic antifreeze to the Black Water
tank and pour a quart of RV, non-toxic antifreeze into
a sink drain to protect the holding tanks, valves, and
pump from residual water freezing�
NOTE
In very cold weather, winterizing the touring coach
is recommending to prevent damage to the waste
systems. Use common sense and winterize as
needed.

Restoring Service

1� Re-install the fully charged house battery�
2� Close the low point drain valves, holding tank
dump valves, water faucets, and fresh water tank
drain�
3� Reconnect water pump line�
4� Add water to the fresh water tank�
5� Turn the water pump on�
6� Open and close faucet valves one at a time until
water runs clear at all faucets signaling RV, non-
toxic antifreeze is flushed out of lines. Go back and
recheck water clarity at all faucets�
7� Turn off water pump�
8� Hook up city water, open faucet valves, and
recheck water clarity�
9� Close water heater drain valve and reset water
heater bypass valve to normal operating position�
Maintenance
9-15