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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 re-
lease the black tank rst, followed by the grey tank. This
will help rinse and debris from the outlet and sewer hose.
To make drainage easier, level the RV.
1. Remove the sewer hose housing dust cap and attach the sewer hose (customer sup-
plied).
2. Place the end of the sewer hose into the approved dump station.
3. 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.
4. 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.
5. Remove, clean and store the sewer hose.
6. 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).
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.
Never leave the black tank drain in the open position continuously when
connected to the campground sewer system. Leaving the drain open will
allow the liquid to drain out increasing the potential for a blockage in the
tank. Keeping the drain in the closed position will prevent debris from
accumulating in the tank.
Do not add automotive antifreeze or caustic chemicals, such as laundry
detergents, into the holding tanks. Although these products may have a
deodorizing eect, they may damage the plastic and rubber parts of the
plumbing system or the components
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