Airstream 360 XC Land Yacht Owner's Manual page 74

AIRSTREAM 360 XC LAND YACHT OWNERS MANUAL
DRAIN AND WASTE SYSTEM
The drain and waste system of your motorhome includes waste holding tanks made from molded plastic.
The MAIN (BLACK) HOLDING TANK enables you to use the toilet for several days away from disposal
facilities. The wastewater from the sink, shower, and bath and lavatory drain into the AUXILIARY
(GRAY) HOLDING TANK. Each tank has its own dump valve LOCATED IN THE DRIVER SIDE
COMPARTMENT IN FRONT OF THE REAR WHEELS; however, both tanks drain through a common
outlet. Therefore, you need to make only one connection when hooking up in a trailer park with sewer
facilities. Remove the cover in the bottom of the compartment and run your sewer hose connector up
through the access hole and connect the hose to the drain connector.
Monitor Panel
Check your monitor panel frequently by pressing the labeled button on the panel. When the MAIN
(BLACK) HOLDING TANK is completely full, sewage cannot be emptied from the toilet bowl. If the
AUXILIARY (GRAY) HOLDING TANK is overfilled, drain water will "backup" into the tub and cause an
unpleasant cleaning job. Never drain the tanks at any place other than an approved dumping station.
To empty both tanks, attach the sewer hose by pressing the bayonet fitting onto the outlet adapter and rotate
clockwise until it feels solid and secure. Attach the outlet end of the hose to the sewage outlet; making sure
that the hose is placed so that it will drain completely. The dump valves are located in the utility
compartment on the roadside. Pull the dump valve handle out as far as it will go and wait until the tank is
drained. If the auxiliary tank is drained after the waste tank, the soapy water will help keep the sewer hose
and outlet clean.
The main holding tank must be flushed out until all paper and waste material is removed. Close the dump
valve and refill the tank with 5 to 10 gallons of clean water and repeat until clean. Always travel with
valves closed and the sewer cap firmly in place.
When Parked and Connected to Sewer Outlet
When you are in a park and connected to a sewer outlet, keep the main holding tank dump valve closed and
empty the tank every few days or whenever it becomes almost full. ONLY BY SENDING A LARGE
VOLUME OF LIQUID THROUGH THE MAIN HOLDING TANK AT A TIME WILL TOILET PAPER
AND OTHER SOLIDS COMPLETELY WASH AWAY.
This practice will avoid the accumulation of solids in the main holding tank, which could lead to an
unpleasant cleaning job. Should solids accumulate, close the dump valve, fill the tank about half full with
water, then drive the motorhome for a few miles. The turbulence and surging of the water will usually
dissolve the solids into suspension so the tank can be drained. Keep the auxiliary tank valve open when
connected to a sewer outlet.
The furnace in your motor home supplies heat to the tanks. In sub-freezing weather, we still recommend
using a winterizing solution designed for RVs in the tanks. Follow the directions on the container. During
storage draining the tanks as described above will protect them from freezing.
CAUTION: Never put wet strength paper towels or tissues in your holding tank, since they won't
dissolve and can "catch" in the mechanism of the dump valve. Colored toilet tissue is slower to
dissolve than white. Most RV accessory stores offer tissue, designed for RVs that will completely
dissolve.
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