Airstream Classic 2020, Owner'S Manual

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Maintenance
8-12
2020 Classic
Fresh Water Tank Draining
Pumping the water out with the self-contained water
pump can empty the fresh water tank. Simply turn on
the pump switch and open a couple of faucets until the
water will no longer drain out. Be sure to watch closely
and turn the pump off when the tank runs dry. Pump
damage can occur if the pump runs dry for more than a
few minutes.
Water Heater Draining
Locate the drain valve on the Alde furnace/water heater
located under the dinette seat. Before draining, switch
off the fresh water pump and open all water taps to
allow air to enter the hot water reservoir as water is
emptied out. Open the drain valve by turning the lever.
The water heater will drain directly below the trailer
through the drain valve hose. If storing the trailer be
sure to leave the valve in the open position until the
next time the heater is used.
The hot water reservoir should be flushed if:
• The boiler has not been used for some time.
• The boiler is in continuous use supplying hot water
(the trailer is being used full time). In this case the
hot water reservoir should be emptied once a month.
NOTE
Refer to the Alde Operating Instructions for further
information on the water heater.
CAUTION
The water heater and its plumbing should always
be drained of fresh water when there is a risk
of freezing or when the trailer is not in use. The
warranty does NOT cover frost damage.
WARNING
Never actuate the drain valve lever as long as the
water heater is under pressure and/or is still warm.
Sanitizing
Potable water systems require periodic maintenance
to deliver a consistent flow of fresh water. Depending
on use and the environment the system is subject to,
sanitizing is recommended prior to storing and before
using the water system after a period of storage.
Systems with new components, or ones that have been
subjected to contamination should also be disinfected
as follows:
1� Use one of the following methods to determine the
amount of common household bleach needed to
sanitize the tank.
a� Multiply “gallons of tank capacity” by 0.13;
the result is the ounces of bleach needed to
sanitize the tank.
b. Multiply “Liters of tank capacity” by 1.0; the
result is the milliliters of bleach needed to
sanitize the tank.
2� Mix the proper amount of bleach into a container of
water�
3� Pour the correct amount of solution (water/bleach)
into the Fresh Water tank and fill with potable
water�
4� Open all faucets (hot and cold) allowing the water
to run until the distinct odor of chlorine is detected.
5� The standard solution must have 4 hours of contact
time to disinfect completely. Doubling the solution
concentration will allow for contact time of one (1)
hour.
6� When the contact time is completed, drain the tank.
Refill with potable water and flush the plumbing of
all sanitizing solution.
Black and Gray Water Tank Draining
To empty one or both tanks, attach the sewer hose
by pressing the bayonet fitting onto the dump valve
outlet and rotating clockwise until it feels solid and
secure. Attach the outlet end of the hose to the sewage
outlet, making sure the hose is placed so it will drain
completely. Pull the main dump valve handle as far as
it will go and wait until the tank is drained. Close the
dump valve and partially refill the tank with clean water,
and repeat the process until clean. The main holding
tank must be flushed out until all paper and waste
material is removed. Should solids accumulate, close
the dump valve, fill the tank about half full with water,
and then tow the trailer for a few miles. The turbulence
and surging of the water will usually dissolve the solids