Installation

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5 Installation
5.1 Fresh water system layout
5.2 Raw water system layout
Note
Use cold water only. Include shut-off valve in water line for maintenance purposes.
Notes
Use cold water only. Include shut-off valve in water line for maintenance purposes.
Use primary and secondary raw water lters.
Raw water pump MUST NOT be demand-type. Pump is controlled by control module.
Install vented loop as shown. It must be equipped with integral check valve that permits air into line to
prevent siphoning.
SeaLand macerator toilets can operate with an
onboard pressurized freshwater system with a
minimum ow rate of 2.0 gpm (7.6 lpm) at the
toilet. Onboard fresh-water demand systems
include a water pump that automatically draws
water from a water storage tank when a valve
SeaLand macerator toilets can ush on seawater but require a separate pump for this purpose. The
pump is activated by the signal from the toilet’s electronic control module that would operate the
integral water valve in a fresh water system. If the raw water pump draws more than 18 amps of
current, a 12 or 24 V DC electrical relay must be installed.
anywhere in the piping system is opened.
SeaLand toilets are equipped with an electrically
operated water valve and an in-line check valve
to prevent contamination of onboard potable
supplies.
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9
VENT
FITTING
SEACOCK
VENT
FILTER
DISCHARGE
PUMP
DECK
DISCHARGE
“FULL” LEVEL
PROBE (opt.)
CONTROL
MODULE
CONTROL
MODULE
MACERATOR
TOILET
MACERATOR
TOILET
FLUSH
SWITCH
0.5 in./13 mm
FRESH WATER
HOSE
0.5 in./13 mm
WATER HOSE
0.625 in./16 mm HOSE
1 in./25 mm HOSE
SEACOCK
TO SUCTION SIDE OF
RAW WATER PUMP
FINE WATER FILTER
(100 MESH)
SMALL ENGINE INTAKE STRAINER (COARSE)
RAW WATER
PUMP
WATER LINE
HOLDING TANK
(cut-away view)
VENTED LOOP/CHECK VALVE
Must be 8 in./203 mm above water
line during all conditions of heel,
trim or load
Installation SeaLand MasterFlush Toilet
FLUSH
SWITCH