Step 2: Remove the water cap and
fill the upper tank until it
reaches about 1 inch (25
mm) below the opening.
Replace the cap.
Step 3: Pull the flush handle to
open slide valve.
Step 4: Pour deodorant directly
into the lower tank, then
close the slide valve. Do
NOT pour deodorant 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 upper tank
by covering the relief valve.
Do not let the upper tank
pressurize when it is dis-
connected from the lower
tank.
In using the toilet:
Step 1: Before each use, with the
seat lid closed, pull the flush 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 altitude.
Step 2: Pull the flush handle to release waste in the lower tank.
Step 3: Push the flush button to rinse the bowl. Push the flush handle to close the slide
valve.
To empty the holding tank:
Step 1: When the tank level indicator shows “FULL,” or at the end of an outing, empty
the lower tank.
Step 2: Pull up on the rear latch to separate the upper tank from the lower tank. Carry
the lower tank to an authorized waste disposal area or a normal toilet. (DO NOT
DISPOSE WASTE IN ANY LOCATION, INCLUDING NAVIGABLE BODIES OF
WATER, WHERE SUCH DISPOSAL IS ILLEGAL OR CREATES AN ENVIRON-
MENTAL HAZARD.)
Step 3: Rotate the discharge spout away from the tank and open the vent on top of the
holding tank. Empty the tank.
Step 4: If water is available, rinse the lower tank before reassembling the portable toilet.
The head is supplied with in-depth instructions, which will be found in the head and
should be removed and read prior to the first use of the system. Store the instructions
with this Owner’s Manual and other important material regarding the boat.
Use only rapid-dissolve toilet paper with these head systems, and only deodorant
specially formulated for this type of head system. See instructions for details. In the
event that anything from the head’s bowl or holding tank escapes, it should be cleaned
as soon as practicable. Failure to clean any spillage may result in unpleasant odors, mil-
dew, mold and damage to the deck or other areas of the boat. This is not covered under
warranty.
See the Storage & Winterization section of this Owner’s Manual for important information
regarding the preparation of the head for storage.
2013 MasterCraft Owners Manual • Electronic Instrumentation • Page 3-25
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