Head
Model:
X55.
Purpose:
The on-board head provides conve-
nience for longer outings.
Location:
The head is located forward of the
observer seat, accessible through a door
that opens into the walk-thru area to the
bow.
Operation:
The following general information
is provided for installed heads. See also
specic information provided by the
manufacturer.
Preparing the standard portable head for use:
Step 1: With the seat lid closed, pull the
ush handle to open the slide
valve. Then push to close. This
relieves air pressure that may
be created in the lower holding
tank due to changes in tempera-
ture or altitude.
Step 2: Remove the water cap and ll
the upper tank until it reaches
about 1 inch (25 mm) below the
opening. Replace the cap.
Step 3: Pull the ush handle to open
slide valve.
Step 4: Pour deodorant directly into the
lower tank, then close the slide
valve. Do NOT pour deodor-
ant into the bowl with the slide
valve closed.
Step 5: Stroke the air pump about 15
times or until air emits through
the relief valve on the water cap.
Do not over-pressurize the up-
per tank by covering the relief
valve. Do not let the upper tank
pressurize when it is discon-
nected from the lower tank.
In using the toilet:
Step 1: Before each use, with the seat
lid closed, pull the ush handle
to open the slide valve, then
push to close. This relieves air
pressure that may be created in
the lower holding tank due to
changes in temperature or alti-
tude.
Step 2: Pull the ush handle to release
waste in the lower tank.
Page 4-54 2014 MasterCraft Owners Manual • Boat Operations
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