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AIRSTREAM LAND YACHT GAS
DRAIN AND WASTE SYSTEM
The drain and waste system of your motorhome includes waste holding tanks made from molded plastic.
The MAIN 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 HOLDING
TANK. Each tank has its own dump valve; however, both tanks drain through a common outlet. Therefore,
you need to make only one connection when hooking up in a motorhome park with sewer facilities.
Monitor Panel
Check your monitor panel frequently. When the MAIN HOLDING TANK is completely full, sewage
cannot be emptied from the toilet bowl. If the AUXILIARY HOLDING TANK is overfilled, drain water
will "backup" into the tub and cause an unpleasant cleaning job. Tank one on the monitor panel is the
"black" tank and tank two is the auxiliary or "gray" tank. 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 on the lower rear
roadside corner of the motorhome. 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.
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