12-8
CLASS C 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.
4. Make sure hose is lying flat. Open black water
(on curb side) 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 flush 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 entering
the grey water tank. Grey water also
rinses out any black water residue from
inside the drain hose.
6. Open grey water valve (driver's side). Close as
soon as 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 unneces-
sary weight while driving.
Storage
Drain
Fig. 12-8 DRAIN HOSE
Outlet
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