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Before using the recreation vehicle, or after dumping the grey and black water holding tanks,
always add the proper amount of deodorant to the black water tank to prevent odors and
help break down holding tank contents (unless winterizing). Follow the deodorant bottle or
package instructions. Driving to a disposal site will normally loosen any accumulated waste
debris or solids from the sides of the holding tanks.
Black and Grey Tank Drains
There are labels on the exterior of the recreation vehicle
indicating the location of the grey and black tank drains
(also called dump valves). Depending on your model, you
may have one or two valves. With one valve, the gray
and black tank will release contents simultaneously. With
the 2-valve set up, it is recommended that you release the
black tank first, followed by the grey tank. This will help
rinse and debris from the outlet and sewer hose.
1.
To make drainage easier, level the RV.
2.
Remove the sewer hose housing dust cap and attach
the sewer hose (customer supplied).
3.
Place the end of the sewer hose into the approved
dump station.
4.
Open the black tank dump valve (depending on your model the valve may be located
under the RV, or on the utility center). Close the dump valve when the black water
holding tank is empty.
5.
Open the grey tank dump valve (depending on your model the valve may be located
under the RV or on the utility center). Close the dump valve when the grey holding
tank is empty.
6.
Remove, clean and store the sewer hose.
7.
Close the sewer hose housing dust cap.
You can locate dump stations throughout the United States and Canada in Woodall's, Rand
McNally Camp Guide, Good Sam Camp Guide, KOA Kampgrounds Camp Guide and vari-
ous other publications. Some fuel stations also have dump stations.Please contact your RV
dealer for assistance in the purchase and installation of a sewer hose or sewer hose extension
(if needed).
Sewage (black) tank preparation
It is important to add enough water to prevent solid waste buildup. Follow the
directions listed below and in the manufacturer's operator manual.
1.
Release one to two quarts (1 or 2 liters) of water into the toilet bowl.
2.
Follow the directions on your RV-approved toilet chemical bottle (customer supplied)
and put the recommended quantity of holding tank chemical into the toilet bowl.
Flush the toilet and allow at least two gallons (8 liters) of water to flow into the holding
3.
tank.
Waste (grey) holding tank preparation
No special preparation is required, however, placing a small quantity of chemicals into this
tank, such as baking soda or an approved RV chemical, will reduce odors from food particles
in the system.
Section 8: Plumbing System
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