5. Check the installation for air leaks, correct priming and discharge.
7.B. For Mounting Underdeck or Thru Bulkhead:
1. Using template mark off the four holes for the deck-plate and cut out the hole for the pump handle.
2. The deck thickness must be a minimum of 18mm (⁄”). For thinner decks use a backing plate 8” (200mm)
square of suitable thickness so that the backing plate plus the deck is at least the minimum thickness (stated
above). Bond this to the deck (see Fig. 4).
3. Position pump under deck and check flow direction. Work the rubber gaiter up through the hole until its
flange rests on the deck. Secure the six ¼” (6mm) countersunk mounting screws provided.
4. As points 3 - 5 of Section 7.A.
Use 38mm (1½") smooth bore reinforced pipework to connect to the pump.
Secure the pipework on inlet and outlet with worm drive hose clip.
This Whale Gusher® 30 is designed to only require minimal maintenance.
WARNING: Before servicing pump, drain water from the system.
Inspection:
The diaphragms and inlet valves are held in place by the groove in the pump body and cover. Following inspection,
ensure that they are seated properly in the grooves before tightening the covers in place. Regular inspection of the
pump is recommended. Access to the pump chamber is quick and easy, requiring no tools. Rubber components
should be replaced if worn or every three years regardless of condition.
During periodic shipboard inspections, the bilge pump should be visually inspected to confirm parts are in good
condition, especially rubber parts and mounting arrangements. The pump should be operated to show that it pumps
water efficiently.
Annual Checks
• Whale advises that the boat's plumbing system is checked annually for leaks and obstructions.
Optimal Performance
• Ensure this product is clear of debris.
Replacement components and Service Kits (AK3051) are available from your local chandlery. It is recommended a
service kit is kept on-board.
Changing the Inlet Valves
1. Unscrew the two hand wheels and remove the cover to expose the diaphragm and valves.
2. Remove the inlet valve.
3. Replace with new valve and make sure it is sealed properly before replacing the cover.
4. Repeat for the other side.
Changing the Outlet Valves
1. Remove both covers.
2. Release 4 screws on outlet and inlet ports, remove ports and gaskets.
3. The outlet valves are moulded as 1 unit. Loosen the 2 screws in the centre of the valves and remove the
valves.
9. MAINTENANCE
Fig. 4 Underdeck installation
8. PLUMBING
4
(¼“)
(12¹/“)
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