Owner's manual

8
hOlDing tanks
SeaLand macerator toilets operate with most
holding tank or treatment systems. If installed
with a holding tank, however, the capacity of
the tank should be sufcient to avoid the incon-
venience of discharging it too frequently. The
average ush volume is .96 gallons (3.6 liters)
including ushwater and waste. A 30-gallon tank
(114-liter) will become full in about 30 ushes.
CAUTION: Overlling the holding
tank can create serious damage to
the sanitation system, such as rupturing the
holding tank and releasing tank contents into
the bilge. To prevent this possibility, Dometic
strongly recommends using the “full” tank
shut-down relay in the toilet’s electronic con-
trol module. The “Full” signal from the hold-
ing tank can be generated by any SeaLand
TankWatch level monitor system.
iNsTAllATiON – sysTeM DiAgrAMs (cont’d)
seacOcks
Seacocks are required by various marine regula-
tions. Only full ow, marine quality valves are
recommended. Some regulations require the
seacocks be congured so they can be locked in
a closed position. Seacocks MUST be installed
according to the manufacturer’s instructions.
WARNING!
HAZARD OF FLOODING – If the toilet
is connected to ANY through-the-hull ttings,
properly installed seacocks MUST be installed
in all piping connected to through-the-hull
ttings. Seacocks MUST be easily accessible
to all users of the toilet or secondary valves
tted in hoses where they are easily acces-
sible. All valves MUST be full bore valves and
of marine quality. Screw-to-close gate valves
are not recommended. Failure to do so can
result in ooding which can cause loss of
property and life.
riser step Or plinth
installatiOns (seat height)
SeaLand macerator toilets are available in
three models to accommodate various spaces.
While the major factor in selecting a model for
a boat is the space provided to t the toilet
into the head compartment, seating height is
also important. A comfortable seating height is
about 20 inches (508 mm).
Toilet Model Seating Height
8812
13.5 in. (343 mm)
8818/8848 17 in. (432 mm)
8819
16.75 in. (425 mm)
Refer to the dimensional drawings on page 3
and the chart below to determine the optimum
toilet for a given installation.