6
Fresh Water Rinse Pipework
Hardware Requirements:
CAUTION:
Turn off power to the water pressure system pump, and open cold water faucet to
depressurize the system.
CAUTION:
If you ever connect your water system to unregulated USA city water supplies, you MUST fit
or use a pressure regulator to prevent risk of flooding.
CAUTION: Pipework – Selection of Correct Method
You MUST select the correct method for the inlet pipework from 2 options and for the outlet pipework from
4 options, according to whether the toilet is above or below the waterline, and to whether it discharges the
waste overboard or into an on-board holding tank.
CAUTION:
Do not position the ventilated anti-syphon loop between the inlet seacock and the rinse
pump , because it may prevent the rinse pump from priming.
• A ‘T’ piece that fits your boat’s pressurized water system pipework with a 1/2” (13mm) nipple going to the solenoid
valve.
• Install a ‘T’ fitting in the pressurized cold water pipework near to the toilet to provide a 1/2” (13mm) feed to the
solenoid valve.
• The solenoid valve should be mounted to a suitable secure surface using the supplied mounting plate in a dry position.
The valve can be mounted in any orientation.
• Install suitable pipework between the ‘T’ fitting and the 1/2” (13mm) inlet port on the solenoid valve.
• Run 3/4” (19mm) hose by the most direct route from the 3/4” (19mm) outlet port on the solenoid valve to the rinse
intake elbow.
Raw Water Rinse Pipework – 2 Options
• Install the raw water rinse pump in a dry position close to the toilet where it will not be more than 6ft (2m) above the
heeled waterline at any time.
• Fit the Pumpguard™ supplied to the inlet of the rinse pump.
• For more detail refer to the separate data sheet supplied with the rinse pump.
Option 1: Toilet below the heeled waterline
• You MUST fit a 3/4” (19mm) vented loop fitting, Jabsco part number 29015-0000.
• Run 3/4” (19mm) hose by the most direct route from the inlet seacock to the inlet of the Pumpguard™ fitted to the
rinse pump.
• Arrange a length of 3/4” (19mm) hose between the rinse pump outlet and the rinse intake elbow to form an anti-sy-
phon loop whose highest point is at least 8” (20cm) above the highest possible waterline, and fit the 3/4” (19mm)
vented loop at the highest point.
Option 2: Toilet always above the heeled waterline
• Run 3/4” (19mm) hose by the most direct route from the inlet seacock to the inlet of the Pumpguard™ fitted to the
rinse pump.
• Run 3/4” (19mm) hose by the most direct route from the outlet of the rinse pump to the rinse intake elbow.
