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Black Tank Flush (If So Equipped)
The black tank ush (no fuss ush) inlet is typically located on the
utility center panel. The location may vary depending on your model.
The inlet color may be either white or black. Attach a garden hose
(connected to a pressurized fresh water source) to the black tank
ush inlet. The water goes directly into the black water holding tank
sprayer connection, allowing you to remove debris and preventing
accumulation. There is a check valve in the plumbing lines to prevent
back ow.Flush the black water tank each time the grey and black water
holding tanks are dumped or as needed.
1. Dump the black water tank (see Gray Tank Drain & Black Tank
Drain) and leave the black tank drain valve open.
2. Connect a garden hose from the water supply source to the black tank ush.
3. With the water source turned ON, ush the black water holding tank until the water
running out of the black tank drain valve is clear (not discolored or cloudy).
4. Disconnect the garden hose and close the black tank drain valve. Fasten the sewer hose
housing dust cap back on the tank ush inlet.
Do not use the same hose to ll your fresh (potable) water tank that is used for
the black tank ush.
The black tank drain valve must be OPEN any time there is a hose (water
supply) connected to the black tank ush.
Do not leave any hose (water supply) connected to the black tank ush
when it is not in use.
Tank Heaters (If So Equipped)
Your recreation vehicle may be equipped with heaters for the fresh, gray, black water tanks
and the water lines or drain lines. The larger tank heaters are 120VAC and attach directly to
the tanks. Water line or drain line heaters are smaller and operate on +12VDC and will be
attached to the water lines or drain lines. These heaters will prevent water in the tanks and
lines from freezing down to -11°F (-24°C) (contingent on recreation vehicle setup).
The tank heaters are thermostat controlled and will cycle on and o while they are operating.
The +12VDC heaters stay on constantly. The thermostat controlled tank heaters turn ON at
44°F (7°C) and will turn OFF at 64°F (18°C). All of the heaters are controlled by a single
ON/OFF switch.
Typically, this red tank heater ON/OFF switch is located on the command center panel or in
the bathroom. The switch lights up red when it is turned ON and controls the heater circuit.
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