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• Avoid sharp bends in the hoses that may cause them to
become kinked.
• Keep all pipework lengths as short as possible, whilst comply-
ing with these instructions. Unnecessary inlet or outlet hose
length just makes the toilet harder to pump.
• If it is difficult to fit the hose onto the hose tails of the toilet or
seacocks, lubricate it with water, or soften the hose by dipping
the end of it in hot water.
CAUTION: Do not apply flame to the hose. Do not
apply flame or any heat to the plastic hose tails on
the toilet. Do not use oils, greases or synthetic lubri-
cants. Do not apply sealing compounds to any hose
connections. Do not over tighten hose clamps. Any
of these actions may result in cracking or breakage
of the plastic parts of the toilet.
• Secure the ends of all hoses to the hose tails with two stainless
steel worm-drive hose clamps, ensuring that all inlet connec-
tions are airtight and that all outlet connections are watertight.
• The Discharge Elbow (key 34) may be rotated 360° to suit your
installation. Always slacken the 2 securing screws, adjust the
discharge elbow to the required position and re-tighten the 2
securing screws BEFORE you connect the hose to it.
CAUTION: Failure to follow this procedure may
result in leaks between the discharge elbow and
the pump cylinder.
Inlet Pipework - 2 options
Option 1: Toilet below the waterline
YOU MUST fit a 19mm (3/4") Vented Loop fitting, Jabsco part
number 29015-0000.
• Run the inlet hose by the most direct route from the inlet
seacock to the flushing pump inlet tail.
• Remove the white hose supplied with the toilet, which con-
nects the flushing pump outlet tail to the elbow (key 6).
• Rotate the intake seal (key 5) so that the elbow points upwards.
• Replace the white hose with a longer length of 19mm (3/4") id
hose and install an anti-syphon loop whose highest point is at
least 20cm (8") above the highest possible waterline.
• Secure the ends of all hoses with two stainless steel worm-
drive hose clamps.
Figure 1.
19 mm (3/4")
VENTED LOOP
38 mm (1-1/2")
VENTED LOOP
AT LEAST
20 cm (8")
38 mm (1-1/2")
OUTLET SEACOCK
19 mm (3/4")
INLET SEACOCK
HAZARD RISK: Bowl rim below waterline.
If the toilet is connected to ANY through-hull fittings, and if the rim
of the bowl falls below the waterline, water may flood in causing
the craft to sink, which may result in loss of life.
Therefore, if the rim of the toilet is less than 20cm (8") above the
waterline when the craft is at rest, or if there is ANY possibility
that the rim of the bowl may be below the waterline at ANY time,
a ventilated anti-syphon loop MUST be fitted in any pipework
connected to a through-hull fitting, irrespective of whether inlet or
outlet. USE VENTED LOOPS!
SPECIAL NOTE 1: The smaller bore inlet pipework is more hazard-
ous than the larger outlet pipework. Unless there is a ventilated
anti-syphon loop in the inlet pipework, water will flow into the
bowl whenever both the inlet seacock is open and the rim of the
bowl is below the actual waterline.
Although moving the Flush Control Lever (key 23) to the "Shut"
position will restrict the flow, this lever CANNOT be relied upon as
a shut-off valve.
SPECIAL NOTE 2: Making a loop in the hose without fitting a vent
may be just as hazardous as no loop at all, because water may
syphon over a loop. It is the vent that actually prevents the syphon.
YOU MAY need a 19mm (3/4") non-return valve, Jabsco part
number 29295-1011
Option 2: Toilet always above the heeled waterline.
YOU MAY need a 19mm (3/4") non-return valve, Jabsco part
number 29295-1011.
• Run the inlet hose by the most direct route from the inlet
seacock to the flushing pump inlet tail.
• For maximum convenience of use, install a 19mm (3/4")
in-line non-return valve next to the inlet seacock, which will
ensure that the pump remains primed in between usages.
Outlet Pipework - 4 options
Option 1: Toilet below the waterline and discharging over-
board.(See Figure 1).
YOU MUST fit a 38mm (1-1/2") Vented Loop fitting, Jabsco
part number 29015-0010.
• Arrange the outlet hose to form a loop which is at least 20cm
(8") above the highest possible waterline, and fit the vented
loop at the highest point.
Figure 2.
DISCHARGE
ELBOW
OPTIONAL:
NON-RETURN VALVE
4
OPTIONAL: 38 mm (1-1/2")
VENTED LOOP
38 mm (1-1/2")
OUTLET SEACOCK
19 mm (3/4")
INLET SEACOCK
AT LEAST
30 cm
(12")
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