Waste Water Systems Cleaning; Winterizing And Storage - Airstream (nest) 2019 Owner's Manual

Waste Water System Cleaning
The only cleaning agents that can be used without causing harm
to the system are household ammonia and tri-sodium phosphate
in small quantities. Do not use any product that contains any
portion of petroleum distillates. This type of product will attack
the rubber seals of your toilet and dump valve. Also, do not use
any dish detergent or abrasive cleaners. All products should be
marked as approved for ABS drainage systems.

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 waste tank. Also drain the
entire water system including the
water heater and the fresh water
tank. Instructions for draining the
water system are explained in the
following paragraphs on winterizing.
The main consideration in winterizing your trailer is to guard
against freeze damage to all vulnerable systems: including the
fresh water system of lines, fixtures, tank, water heater, and
pump; the waste water system of toilet, traps and tanks; plus,
the batteries.
To completely winterize your trailer follow this procedure:
1. Level the trailer from side to side and front to rear. Open
faucets at galley, exterior and inside shower.
2. Turn the water pump switch to the ON position to expel water
from the storage tank
3. Open all drain valves including valve on water heater and
exterior water service valve.
4. While the water is draining from the system, open and flush
the toilet-flushing valve. Turn the thumb button on the shower
head while holding the spray head down inside the bowl and
drain all water from the flexible hose. Unscrew the shower
head and store.
5. Turn the pump switch OFF after all water has been removed
from the storage tank.
6. Disconnect 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 can be
caught in a towel or rag.
8-10
8. Lower the front of the
trailer as far as the jack
will allow until water
ceases to drain, then
crank the jack up as
high as it will go and
allow any remaining
water to drain out.
9. After the water has
stopped running from
the drain lines, apply 50 lb. of air pressure at the city water
inlet. (An is available from your dealer's RV accessory store.
Be sure the toilet valve, all drain valves and faucets are open
and pump outlet hose is disconnected. This can be done at
a service station and will force any remaining water from the
water heater and remove any water that
may be trapped in low areas.
10. Pour a cup of non-toxic RV antifreeze
that has been approved and listed by
a recognized testing authority such as
Underwriter Lab into the lavatory, sink and
tub drains to prevent trap freeze-up.
11. Be sure to open the waste-holding
tank dump 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). Plan ahead and have this
done at a dump station.
12. Remove the batteries from your trailer and store in a cool, dry
place where there is no danger of freezing. It is very important
for optimum life of a battery to check it periodically and to
keep it fully charged.
13. Remove any items (food, cosmetics, etc.) from trailer interior
that might be damaged by freezing or that might damage the
trailer if containers should break.
For additional winterizing protection, add a non-toxic antifreeze
(approved for drinking water system) to the water lines using the
following procedure:
CAUTION
Remove all RV antifreeze spillage from all drain and
faucet parts after winterizing. Failure to do so could
result in damage to the plumbing fixture's finish.
1. Reconnect all lines except the hose to the pump inlet port.
Close all drain valves.
2. Turn water heater bypass valves to their bypass position. See
photo below for reference to these valves.
3. Attach a length of hose to the pump inlet port. This piece of
hose should be long enough for the free end to reach to the
bottom of the antifreeze container.