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To make the water connection, shut off the water system pump
and open one of the systems faucets or fixtures to drain the
pressure from the system. Select an appropriate tee type fitting
that can be installed in the existing pressurized water system and
will provide a 1/2" (13mm) hose barb to feed water to the toilet.
Install the tee fitting in a location on the pressurized water system
that provides convenient connection to the toilet's solenoid valve.
If the toilet is being connected to the vessel's fresh water system
and the vessel may be connected to an unregulated city water
supply, it is recommended that a valve be installed in the toilet
water supply line ahead of the solenoid valve to regulate the flow
rate of incoming pressurized city water.
The solenoid valve should be positioned as close to the toilet as
possible.
The solenoid valve bracket should be secured to a solid mounting
surface with four screws. If the valve assembly is attached to a
wood surface, 3/8" (10mm) long screws are generally adequate
to support the weight of the valve assembly. If desired, the valve
assembly may be installed inside a cabinet or locker to conceal
it from view of the vessel's occupants. To provide a clean sanitary
appearance inside the head area, a 6ft. (1.8m) section of smooth
white hose is provided with the toilet to connect the toilet bowl
spud fitting to the outlet hose barb.
The solenoid valve inlet hose barb is then connected with 1/2"
(13mm) reinforced vinyl hose suit able for pressurized water to the
tee fitting installed in the water system line. All pressurized water
system connections should be secured with stainless steel band
type hose clamps. The 3/4" (19mm) hose connecting to the bowl
should be secured with a hose clamp to prevent it from being ac-
cidentally dislodged but generally does not need a hose clamp to
secure it to the bowl spud fitting unless desired for added security.
The discharge port includes a 1" (25mm) hose barb and should be
plumbed with 1" (25mm) hose to an on board holding tank or, if
appropriate, to an overboard discharge through hull. A 1" (25mm)
to 1-1/2" (38mm) barbed hose adaptor is provided to adapt a
1" (25mm) discharge hose to 1-1/2" (38mm) hose, if desired.
The discharge plumbing should be kept as short as possible and
bends in the discharge hose should be kept to a minimum. To
retain water in the bowl, the discharge hose should a vented loop
about eight to ten inches above the base of the toilet and as near
to the toilet as can be practically accomplished without creating an
unsightly plumbing situation.
Waterline
Vented Loop
WARNING: Flood hazard.
If toilet is installed below the waterline, it
must be installed with a properly
positioned vented loop in the discharge hose. Failure to do so
can result in flooding which can cause loss of property and life.
If the toilet is below the water line and is plumbed to an over
board discharge through hull, the discharge plumbing must
include a vented loop positioned so it remains above the water
line at all angles of heel and trim. Total discharge head should not
exceed 4 feet (1.2M).
ELECTRICAL
The electrical wiring should be independent of all other accesso-
ries. It should be made with marine grade copper stranded wire of
the gauge specified in the electrical specifications chart. Make all
wire connections with mechanical locking type connectors (crimp
type butt connectors and terminals).
Ensure the circuit is protected by a proper sized fuse or circuit
breaker determined from the electrical specifications chart. Secure
all wires to a solid surface approximately every 18" (0.5m) along
their entire length of run.
Wire the switch panel to the solenoid valve and toilet pump
assembly as per the following wiring diagram. Connect the brown
lead from the panel to the waste pump positive (orange) lead.
Connect the black waste pump motor lead to battery negative.
Connect the yellow lead from the panel to a solenoid valve ter-
minal. Connect the remaining solenoid valve terminal to battery
negative. The solenoid valve is not polarity sensitive.
Select a location for the switch panel that is convenient to the
toilet user and will also allow access to run the wires from the
switch panel to both the toilet's motor and the solenoid valve as
well as from the electrical power source to the switch panel. To
install the switch panel, drill two 1-3/4" (45mm) diameter holes
(slightly over-lapping) through the selected switch mounting
surface per the attached template. Ensure the template is oriented
correctly because it is not symmetrical. Also, drill four appropriate
sized holes for the fasteners selected to secure the switch panel to
its mounting surface.
WIRING DIAGRAM
BROWN
To positive
RED
3
YELLOW
To waste pump
positive (orange)
motor lead
BROWN
YELLOW
To Solenoid
Valve
