Airstream INTERNATIONAL CCD - Manual (Page 71)

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PLUMBING
WINTERIZING AND STORAGE
When storing your trailer for short or long periods use the same precautions as you
would in your own home in regard to perishables, ventilation and rain protection. In
addition, for prolonged storage periods flush out all the drain lines and the holding
tanks. Also drain the entire water system including the water heater and the water
storage tank. Instructions for draining the water system are explained in the following
paragraphs on winterizing.
THE MAIN CONSIDERATION IN WINTERIZING IS TO GUARD AGAINST FREEZING
DAMAGE TO THE HOT AND COLD WATER SYSTEMS, THE WASTE DRAIN SYSTEM
(INCLUDING THE TRAPS), AND THE WATER HOLDING TANKS, THE WATER HEATER,
AND THE BATTERY.
To completely winterize your trailer follow this procedure.
1. Level the trailer from side to side and front to rear. Open all faucets
2. Turn the water pump switch to the ON position to expel water from the storage tank
or open the fresh water tank drain valve.
3. Open all low point water drain valves including drain plug or valve on water heater
(See drain valves on previous page).
4. While the water is draining from the system, open and flush the toilet-flushing valve.
Depress hand spray lever while holding the spray head down inside the bowl.
Depress hand spray thumb button on the telephone shower head while holding
down inside the tub and drain all water from the flexible hose. Unscrew the heads
on both spray units and store.
5. Turn the pump switch OFF after all water has been removed from the storage tank.
6. Remove outlet hose from water pump.
7. Disconnect the water pump inlet connection and turn the pump on until all the water
is expelled. This water, about ½ cup, can be caught in a towel or rag.
8. Lower the front of the trailer as far as the jack will allow until water ceases to drain,
then raise the jack up as high as it will go and let any remaining water drain out.
9. After the water has stopped running from the drain lines, apply at least 60 lbs, of
air pressure at the city water inlet. An air to city water adapter is available from your
dealer’s RV accessory store. Be sure the toilet valve and all drain valves and faucets
are open and pump outlet hose is disconnected. This can be accomplished at a
service station and will force any remaining water from the water heater and remove
any water which may be trapped in low areas.
10. Pour a cup of *approved non-toxic RV antifreeze into the lavatory, sink and tub
drains to prevent trap freeze-up.
*Approved and listed by a recognized testing authority such as UL (Underwriter Lab).
CAUTION Remove all RV anti-freeze spillage from all drain and faucet
parts after winterizing. Failure to do so could result in damage to the plumbing
fixture’s finish.
11. Be sure to open the waste holding tank drain valves and drain and flush the
tanks thoroughly (THIS IS VERY IMPORTANT AS THE SEWAGE IN THE TANKS, IF
FROZEN, COULD SERIOUSLY DAMAGE THE TANKS.)
12. Remove the cartridge of the water purifier and leave the purifier valve in the open
position. (If so equipped.)