The waste drainage system was designed to provide adequate and safe
storage and/or discharge of waste materials. All materials used in fabrication
and installation of system is tested by a nationally recognized testing labora-
tory. The entire fabricated waste system is factory tested in accordance with
American National Standards Code A119.2. The drainage system uses ABS
plastic piping and fittings connected to sinks, shower, toilet and holding
tanks and provides for their drainage to an outside termination. The
motorhome should be reasonably level for optimum operation of the systems.
There are two separate waste water systems: one for waste water (grey
water) and one for sewage waste (black water). Each has its own storage tank
control valve and both empty through a sewer drain hose. When traveling, it
is recommend both holding tanks be empty or less than half full.
• Do not use strong or full strength detergents to deodorize and
disinfect. Use odor control chemicals made especially for
holding tanks.
• Do not put automotive antifreeze, ammonia, alcohol or acetone
in holding tanks. Some chemicals will dissolve plastic.
• Do not put large table scraps in the tanks. They could get stuck
in or damage the valve seals.
• Do not flush facial tissues. They are treated chemically to
strengthen them and will not dissolve like toilet paper. Special
holding tank tissues are available at most RV supply stores.
White toilet paper dissolves faster than colored papers.
Most State Parks have strict regulations about discharging wastes except
into authorized disposal systems. Dumping raw sewage from toilet holding
tanks, except at authorized dumping stations, is universally prohibited.
Most National, State and private parks have either a central dump facility
or campsite hook-up for sewage. Many of the modern rest areas along the
interstate now have dump stations available. You will find a list of dumping
stations from coast to coast in Woodall’s Campground Directory, Trailer
Life’s RV Campgrounds and Services Directory, Rand McNally’s
Campground and Trailer Park Guide, Good Sam Park Director (Good Sam
Club) and other publications. Some major oil companies offer dump facilities
at selected stations. Plan ahead in locating proper and legal disposal sites for
holding tank waste.
Water Systems
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S I G N A T U R E
6 • 1 6 8
WASTE WATER
SYSTEMS
Waste Drain &
Sewage Tanks
Proper Waste
Disposal
What Not
to Put in Waste
Holding Tanks
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