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pLUMBINg
DRAIN AND WASTE SYSTEM
Your trailers drain and waste system includes
waste-holding tanks made from molded plastic,
free from corrosion problems, with trouble-free
dump valves.
The MAIN HOLDING TANK enables you to use
the toilet for several days away from disposal
F
facilities. The wastewater from the sink, shower,
bath and lavatory drains 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 trailer
park with sewer facilities. The valves are labeled
at the handles.
NOTICE: 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.
Check your monitor panel frequently. When the BLACK WATER HOLDING
TANK is completely full, sewage cannot be emptied from the toilet bowl. If the
Typical Dump Valve System
GRAY WATER 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.
Emptying Tanks
Almost all campgrounds will have dumping facilities. Park directories such as
Woodalls and Rand McNally also list dumping stations.
To empty one or both tanks attach the sewer hose by pressing the bayonet
fitting onto the dump valve outlet 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 it will drain completely.
Dump Valve Handles
Pull the dump valve handle as far as it will go and wait until the tank is drained.
When dumping, the main holding tank should be dumped first; then the auxiliary
holding tank. This will help to rinse out the sewer line with auxiliary holding tank
water.
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 clean water and repeat
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