Applications

Johnson Pump Marine Toilet, Manual

Johnson Pump Comfort and Compact bowl manually operated marine toilets can be installed in both power and sailing craft, either above or below the waterline, for use on sea, river, lake or canal.

The waste can be discharged either overboard (please have in mind national or local restrictions), or into a treatment system or into an on-board holding tank.

Note: Johnson Pump manual toilets are designed specifically for marine use. Consult your Johnson Pump retailer for advice about possible non-marine applications.

Features

Design

•Flexible hole pattern on the base, for easy substitution with the most common toilets on the market

•Reversible pump mounting allows re-assembly for left hand operation by installer

•Self-priming, double acting piston pump

•Piston rod guide in brass for increased service life

•Strong swirl action for efficient flushing

•Smooth design for easy cleaning

•Ergonomic handle

•Spring assisted top valve closure for easier priming

•Constant 38mm (1 1/2") bore waste path minimizes blockages

•Double check-valves at full 38mm (1 1/2") bore prevent back flow

•Multi-angle outlet for various installations

•Accessible mounting points for faster installation

•Standard fastenings, logic located, no need for special tools

•Double sealed base plug for winter drain and easy cleaning access

Material

•Premium baked enamel painted wooden seat and cover

•Hygienic white ceramic bowl for ease of cleaning

•Pump and base moulded in ABS or polypropylene, stainless steel fastenings, brass weights and neoprene seals and gaskets

Performance

•Self priming, dry, height 1m (3ft)

•Discharge height 3m (9ft)

Dimensions

• Dimensional Drawing on the page x.

Installation instructions, General

Through hull fittings:

You need:

19 mm. (3/4”) bore seacock for the flushing water inlet and, if you are discharging overboard, a 38 mm. (1 1/2”) bore seacock for the waste outlet.

•Keep to the seacock manufacturer’s instructions concerning materials and methods of installation

•Ensure that the inlet seacock is positioned where it will be below the waterline at all times when the craft is under way and also ensure that any outlet seacock is both aft of, and higher than the inlet seacock

Pipework -selection of the correct method:

You must select the correct installation method for the inlet pipework from 2 possibilities and for the outlet pipework from 4 possibilities, 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.

General instructions for all possible installations

You need:

•Spiral reinforced smooth bore flexible hose for both the 19 mm.

(3/4") internal diameter inlet and the 38 mm (1 1/2") internal diameter outlet hose

•Stainless steel hose clip

•secure the hose runs so that the hoses cannot move, nor exert any leverage action on the hosetail fittings to which they are connected, as this may cause adjacent joints to leak.

•avoid sharp bends in the hoses since this might cause them to become kinked

•keep all pipework lengths as short as possible while you are carrying out these operations Unnecessary inlet or outlet hose lengths just make the toilet harder to pump.

Tip: Should it be difficult to fit the hose onto the hose tails of the toilet or the sea cocks, soften the hose by dipping its end in hot water

Caution:

•DO NOT APPLY FLAME TO HOSES

•DO NOT APPLY FLAME OR HEAT TO THE PLASTIC HOSE TAILS OF THE TOILET

•DO NOT APPLY SEALING COMPOUNDS TO ANY HOSE CONNECTION

•Secure all hose ends to the hose tails with preferably two stainless steel clips, ensuring that all inlet connections are airtight and that all outlet connections are watertight.

•The discharge elbow may be rotated 360 deg. to suit your in- stallation. Always slacken the 2 securing screws, adjust the discharge elbow to the required position and retighten the 2 securing screws before connecting the hose to it

Caution:

FAILURE TO FOLLOW THIS PROCEDURE MAY CAUSE LEAKS BE- TWEEN THE ELBOW AND THE PUMP CYLINDER

Pipework – Inlet, 2 alternatives

Alternative 1:

Toilet below the waterline

You must use a 19 mm (3/4”) Vented Loop fitting.

•Run the inlet hose by the most direct way 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 bowl elbow

•Using a spanner, rotate the intake seal so that the elbow points upwards

•Replace the white hose with a longer length of 19 mm internal diameter hose and position it in a way that its point is at least

20 cm (8”) above the highest possible waterline and fit the vented loop at that highest point

Caution:

DO NOT POSITION THE VENTED LOOP BETWEEN THE INLET SEA- COCK AND THE FLUSHING PUMP INLET, as it will make the flushing pump difficult or harder to prime, and could prevent it from working at all.

English