WATER SYSTEMS - 6
CAYMAN 2007
120
What to Put in Holding Tanks
Grey Water Tank:
The grey water waste tank stores the sink,
shower and clothes washer drain water. A
reduced mixture of chemicals may help to
control odor in the grey tank.
Ensure that there is enough liquid in the
holding tanks prior to dumping the waste
holding tanks to provide a smooth fl ow through
the valve, drain pipe and drain hose. Empty
the waste holding tanks weekly to prevent
stagnation and overfi lling.
Black Water Tank:
Before initially operating the toilet, treat the
sewage holding tank with a pre-charge of water
and an odor-control chemical (available at most
RV supply stores). First, add approximately
three gallons of water to the holding tank. Next,
mix the chemicals, in accordance with the
manufacturer instructions, with approximately
one gallon of water. Pour mixture through toilet
to the holding tank. Be careful not to spill the
chemical on hands, clothing, toilet bowl or
carpet. Hot weather conditions may require
adjusting the amount of chemical used to control
odor. Repeat the chemical pre-charge to the
holding tank each time the tank is cycled.
WARNING:
Most chemical mixtures for holding
tank odor control are poisonous.
Follow the product manufacturer’s
directions and warnings when using
holding tank additive. DO NOT use
any products that contain petroleum
distillate or ammonia in place of RV
odor controlling chemical. Petroleum
distillate or ammonia will damage the
ABS plastic holding tanks and seals.
Waste Drain & Sewage Tanks
The waste drain system provides adequate and
safe storage and/or discharge of waste materials.
The drain system uses ABS plastic piping and
fi ttings connected to sinks, shower, toilet and
holding tanks draining to an outside termination.
The motorhome should be reasonably level
for optimum operation of the waste systems.
The wastewater holding system consists of a
grey water tank that stores the sink, shower and
laundry washer drain water, and a black holding
tank that stores waste from the toilet.
Drain valves and a tank fl ush system dispose
of waste through a common termination. Each
holding tank has a separate drain valve dumping
the waste water (grey water) and sewage (black
water) through a common single discharge
outlet. The tank drain valves are located service
center on the roadside. Use the Monitor Panel
to observe tank levels. When ready to drain the
tanks, drain the sewage tank fi rst. Next, fl ush the
black tank with the fl ush system. Close black
tank valve after fl ushing tank. Drain the grey
water tank. Using this sequence helps to fl ush
solids from the sewer hose. It is recommended
that both holding tanks are less than half full
when traveling.
Waste Drain System
The waste drain system includes waste valves
and a fl exible sewer hose. When it is time to
dump either the grey or black holding tanks,
connect the fl exible sewer hose to the dump port
at the service center. Place the other end of the
hose in the appropriate waste dump site, and
open the desired tank valve.
A fl exible, 3" sewer hose connects the
termination drain and the shore facility. Sewer
hoses usually come in 10 or 20 foot lengths. The
sewer hose is stored in a tube accessed through
a door on the roadside next to the service bay.
The shore fi tting for the sewer hose may be a
three or four-inch, male or female thread pipe;
or a four-inch pipe with no threads, covered
by a metal plate. Different styles of adapters
are available to fi t most confi gurations. Hose
ladders may also be purchased to support the
hose.
It is important that the hose remains secure.
Always tighten clamps and restraining devices
before use. Lay the hose inline between the
termination outlet and the shore fi tting. Restrain
the hose to prevent movement during use.
Wear protective and/or disposable gloves when
handling the sewer hose.
040422
Summary of Contents for CAYMAN 2007
Page 12: ...GENERAL INFORMATION 1 CAYMAN 2007 8 NOTES...
Page 14: ......
Page 16: ......
Page 52: ...DRIVING SAFETY 2 CAYMAN 2007 48 NOTES...
Page 80: ...EXTERIOR INTERIOR CARE 3 CAYMAN 2007 76 NOTES...
Page 100: ...APPLIANCES 4 CAYMAN 2007 96 NOTES...
Page 132: ...WATER SYSTEMS 6 CAYMAN 2007 128 NOTES...
Page 160: ...ELECTRICAL SYSTEMS HOUSE 8 156 CAYMAN 2007 NOTES...
Page 226: ...INDEX 222 CAYMAN 2007 NOTES...
