tanks. Some chemicals will dissolve plastic.
• Do not put large table scraps in the tanks. They could get stuck in or
damage the valve seals.
• Do not flush facial tissues. They are treated chemically to strengthen them
and will not dissolve like toilet paper. Special holding tank tissues are
available at most RV supply stores. White toilet paper dissolves faster than
colored papers.
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Before you start to dump your waste tanks, ake a few minutes to exercise
the drain pipe. Grasp both sides of the drain pipe firmly and swivel the pipe up
and down. This will exercise the O-rings. When the drain pipe is pointed up,
turn the drain end cap counterclockwise and remove it from the drain pipe.
This will prevent any residual spill from running out.
To dump your waste holding tanks:
• Unscrew the bottom access hole plug from the service compartment. Feed
the adapter end of the drain hose up through the hole and install the hose
adapter on the drain pipe.
• Attach the other end of the drain hose to the sewer connection at the dump station.
• Rotate the drain pipe downward to maximize flow.
• Drain the sewage tank first by pulling the large T-handle gate valve out on
the water connection panel. The sound of water rushing through the hose
is audible.
• Flush the sewage tank. Connect the water supply hose to the SEWAGE
TANK FLUSH connection on the water connection panel. This water
supply hose should not be the same hose used to connect the city/fresh
water hook-up. Ensure the T-handle gate valve remains open when
flushing the sewage tank. Turn the water on and flush the system for
approximately two minutes. Again, water running through the drain hose
should be audible.
• Turn the water off and disconnect the water supply hose when finished
flushing the system.
• After you have drained and flushed the sewage tank, drain the waste water
tank by pulling the T-handle out on the water connection panel.
• Flush the waste holding tanks with fresh water before closing the gate
valves. The waste water tank is flushed by pouring two gallons of water
down a sink drain.
• Run the toilet water to flush the sewage tank.
• Push both T-handles in and install the end cap (required in some states)
when in transit to prevent leakage.
• Flush the drain hose with either the water supply hose or the exterior
faucet sprayer, and secure in travel location.
WARNING: When using the black tank flush, do not leave the
motorhome unattended or flooding may occur. Turn off the
water supply to the black tank flush when finished.
Water & LP-Gas Systems
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EXECUTIVE 4•122
Dumping the
Waste Holding
Tanks
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