3
Figure 1.
Figure 2.
Secure the hose runs so that the hoses cannot move
•
and chafe, and so that they do not exert any leverage on
the hose tail fittings to which they are connected, as this
may cause adjacent joints to leak.
Avoid sharp bends in the hoses that may cause them to
•
become kinked.
Keep all pipework lengths as short as possible, whilst
•
complying 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 lubricants. Do not apply sealing
compounds to any hose connections. Do not
over tighten hose clips. 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 clips, ensuring that all
inlet connections 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.
5.2 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
•
connects 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 arrange it to form an anti-syphon loop
whose highest point is at least 20cm (8") above the
highest possible waterline, and fit the Vented Loop at the
highest point.
•
Secure the ends of all hoses with two stainless steel
worm-drive hose clips.
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
hazardous 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.
19mm (3/4")
VENTED
LOOP
38mm (1 1/2")
VENTED LOOP
AT LEAST
20cm (8")
HEELED
WATERLINE
38mm (1 1/2")
OUTLET
SEACOCK
19mm (3/4")
INLET
SEACOCK
OPTIONAL: 38mm (1 1/2") VENTED LOOP
19mm (3/4")
INLET
SEACOCK
38mm (1 1/2")
OUTLET
SEACOCK
AT LEAST
30cm
(12")
HEELED
W
ATER
LINE
OPTIONAL NON-
RETURN VALVE
DISCHARGE
ELBOW
