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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.
Do not use the same hose to ll your fresh (potable) water tank that is used for
the black tank ush.
Macerator Toilet (if so equipped)
The toilet is a toilet with a built in macerator and pump system. Generally, more water is
required only when ushing solids. If there is not a sucient amount of water used during
ushing, waste materials may not evacuate properly from the toilet drain line to the sewage
holding tank and a clogged sewage tank or sewage pipe(s) could eventually occur.
Black Tank Flush (if so equipped)
The black tank ush (no fuss ush) inlet is typically located on the utility center panel (if so
equipped) labeled as “Tank Flush”. For models not equipped with a utility center, the inlet
is located on the side of the recreation vehicle. The location may vary depending on your
model. 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 connec-
tion, allowing you to remove debris and preventing accumulation. A check valve is incorpo-
rated 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.
: Utility center (if so equipped) valve positions do not affect the
tank ush function. It does not matter where they are positioned when
operating the tank ush.
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