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shaped pockets and tighten it to form bowl mounting
studs. Position the square section O-ring in the O-ring
groove on the top of the base and place the china bowl on
the base in the desired orientation relative to the pump
assembly. Place one plastic washer (to protect the china),
then one stainles steel washer on each machine screw and
attach the remaining hex nuts to secure the bowl to the
base. Cap each machine screw and nut with a white deco-
rative nut cap.
Position the toilet assembly in its intended installed posi-
tion. When locating the toilet, ensure there is adequate
clearance above and to the rear of the bowl so the seat
and lid assembly can rotate slightly past vertical and will
remain up when lifted. Once the exact position for the toilet
has been de ter mined, mark the location of the three
base at tach ment holes on the toilet mount ing sur face.
De ter mine the best toilet at tach ment meth od using 1/4"
(6 mm) fasteners (either ma chine screws for through
bolting or lag screws for topside at tach ment) and drill the
ap pro pri ate size holes for the fasteners being used. If secur-
ing the toilet with lag screws into a plywood underlayment
below fi ber glass, be sure to drill a hole through just the fi -
ber glass layer large enough to allow clear ance for the
screw threads and shank to avoid crack ing the fi ber glass.
The PAR-MAX pump should be mounted to a solid
mounting surface. It should be secured with four fas ten ers
through the rubber grom mets that snap into the pump's
base. Do not over-tighten the mounting screws and crush
the grommets such that they will not absorb vibration.
The pump may be mounted in any position; how ev er, if
mounting it to a vertical surface it should be oriented so
water dripping from a loose port con nec tion will not drip
down on the motor. Plumbing runs should be kept as
short and straight as possible. All plumbing should
be com plet ed with quality 3/4" (19 mm) hose that will not
collapse or kink. Route the inlet hose from a 3/4" (19 mm)
through hull and seacock fitting located well below the
waterline (and well forward of any discharge through
hulls, if in stalled) to the pump inlet port. Ensure the inlet
hose passes through an accessible location (pref er a bly
above the vessel's waterline) that will allow for the installation
of the Toilet Pumpgard strainer where it can be pe ri od i cal ly
inspected and cleaned of debris. The Pumpgard strainer
should be secured with two fasteners to a solid mounting
surface with the flow arrow pointing towards the pump.
The inlet hose should be cut and each end attached to the
strainer's ports. The hose from the strainer's dis charge
port must con nect with the PARMAX pump's inlet port.
Provided with the toilet is a six foot length of smooth
white aes thet i cal ly pleas ing hose to connect to the back
of the toilet bowl and be routed out of the head area.
Ideally, the PAR-MAX pump should be located so this
length of hose can be con nect ed directly to the pump's
discharge port avoiding an additional splice to the hose
lead ing from the pump to the back of the toilet bowl. If this
is not practical, acquire a 3/4" (19 mm) barb to barb hose
mender and splice the white hose to the supply hose
from the discharge port of the pump.
Page 2
WARNING
!
Flood hazard. Close inlet and outlet
seacocks prior to disassembling toilet.
Failure to do so can result in flooding
which can cause loss of property and life.
If the toilet is installed below the vessel's wa ter line, in
order to prevent a siphon action from filling the toilet, a
properly positioned vented loop fitting must be installed
between the PAR-MAX pump and the back of the toilet
bowl. The vented loop fitting must be secured in a loca-
tion that remains at least 6-8 inches (15-20 cm) above
the waterline at all angles of heel and trim (see diagram).
The toilet discharge port is sized for 1" (25 mm) hose.
The discharge hose should be a quality grade reinforced
hose suitable for waste ap pli ca tions. Route the dis -
charge hose to the hold ing tank in the most direct way
with as few bends as possible. To retain some water in
Waterline
the bowl, it is best to loop the discharge hose up about
8-10 inches (15-20 cm) as close to the toilet as practical
then on to the holding tank. It is best to avoid any dips or
low spots in the dis charge plumbing that can act as
water traps and collect waste. If this occurs, waste can
solidify and cause a discharge blockage.
If the toilet is plumbed to an overboard discharge, and
is below the vessel's waterline, the discharge plumbing
must include a properly positioned vented loop. The
vented loop fitting must be secured in a location that
remains at least 6-8 inches (15-20 cm) above the water-
line at all angles of heel and trim. The maximum dis-
charge head without a notable decrease in pump perfor-
mance is four feet (1.3 M).
ELECTRICAL
The elec tri cal wiring should be in de pen dent of all other ac -
ces so ries. It should be made with ma rine grade cop per
strand ed wire of the gauge spec i fied in the elec tri cal spec -
i fi ca tions chart. Make all wire con nec tions with me chan i cal
lock ing type con nec tors (crimp type butt connectors and
ter mi nals). En sure the circuit is protected by a proper sized
fuse or circuit breaker de ter mined from the electrical spec -
i fi ca tions chart. Secure all wires to a solid surface approxi-
mately every eigh teen inches (1/2 M) along their entire
length of run.
Vented Loop
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