12-4
CLASS C & B
+
MOTORHOME
12.2.3 DUMPING HOLDING TANKS
When dumping holding tanks:
1. Remove drain hose from storage compartment.
2. Remove dust cap from drain outlet. Attach
drain hose securely.
3. Place the other end of the hose in sewer
opening. Make sure hose is lying flat.
4. Open black water valve with a quick pull.
Move hose about gently to ensure flow of
waste materials. When tank is empty, close
valve.
5. After tank has been drained, run several
gallons of fresh water into the black water tank
through the tank flush kit fitting (optional).
Open the dump valve to flush out any residual
wastes. After the tank has been drained again,
close the valve, secure compartment.
NOTE
Do not open the grey water valve until
black water valve is closed. This will
prevent any black wastes from enter-
ing the grey water tank. Grey water
also rinses out any black water resi-
due from inside the drain hose.
6. Open grey water valve. Close when the tank is
empty.
7. Add an odor control chemical to the black
water holding tank. These are available at any
RV center.
8. Rinse the sewer hose thoroughly and store.
IMPORTANT
Holding tanks should be dumped
before travelling to eliminate unnec-
essary weight while driving.
Storage
Drain
DRAINAGE SYSTEM
Outlet
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