Whale Gusher Urchin manual bilge pump - deck-through mounting

This pump is designed for through-deck mounting. It is recommended to select an installation position where the pump can be operated comfortably, with full movement of the handle available.

Before ordering and installing the Whale Gusher Urchin BP9021 pump, it is important to verify the exact product reference and its compatibility with the existing equipment on board your boat.

Yes, the pump body orientation can be adjusted. To do this, loosen the pinch bolt, remove the clamping ring, lift the diaphragm, and rotate the pump body to the desired position. Then reattach the diaphragm, clamping ring, pinch bolt, and nut. The inlet is always 180 degrees from the outlet.

Whale pumps are warranted for 5 years against material and manufacturing defects from the date of purchase. Rubber components are covered by a 1-year warranty.

If the pump does not prime or jams, check the following points:

Blockages in the intake hose or air leaks at the pump connection. A torn diaphragm. Debris under the valves or deformed valves. Collapse of the intake hose during the intake stroke (use of a reinforced hose is recommended).

The Whale Gusher Urchin BP9021 manual bilge pump is specifically designed for manual pumping and draining of your boat's bilge.

The Whale Gusher Urchin manual bilge pump, part number BP9021, is designed for manual pumping and draining of normal bilge water aboard vessels. It efficiently and reliably evacuates water accumulated in the bilge.

No, this pump is designed to remove normal bilge water. Users should be aware that its capacity may not be sufficient to handle a rapid influx of water in the event of a major emergency.

The pump is fitted with stepped inlet and outlet fittings allowing the use of two different hose diameters:

25 mm (1 inch) / 38 mm (1 1/2 inch). If the larger diameter is required, the 25 mm section must be cut off.

It is recommended to select a location where the pump can be operated comfortably, with the full stroke of the handle available. Ideally, the pump should be positioned midway between the strainer and the hull outlet to minimize pumping effort. Ensure easy access to the pump for maintenance.

Yes, fixed and removable handle models (including the BP9021) offer considerable flexibility in positioning the handle relative to the flow direction. To do this, loosen the clamping screw, remove the clamping ring, lift the membrane slightly, and rotate the pump body to the desired position. The inlet is always 180 degrees opposite the outlet.

Use 6 mm (1/4 inch) bolts to securely mount the pump.

Yes, male and female elbows are available to adapt directly to both pipe sizes (25 mm and 38 mm) to facilitate installation in tight corners. The part numbers are EB3364 (for 25 mm/1 inch) and EB3488 (for 38 mm/1 1/2 inch).

To optimize the piping system:

Keep pipes as straight as possible and use elbows where turns are unavoidable. Avoid sharp bends in the suction pipe. Ensure all fittings have a uniform bore, as a restricted outlet can cause throttling and difficult priming. A Whale inline check valve can prevent backflow. The suction point must be at the lowest point of the bilge.

The pumping capacity depends on the lift height and the number of strokes per minute. For reference, with a 25 mm (1 inch) pipe, a lift height of 1 meter, and a discharge height of 0.5 meters:

At 60 strokes/min: approximately 36.37 liters/minute
At 90 strokes/min: approximately 47.28 liters/minute
Please refer to the performance chart in the technical documentation for precise values based on your installation conditions.

Whale pumps are warranted for 5 years from the date of purchase against defects in materials and workmanship. Rubber components are warranted for one year.

The warranty covers defects in materials and workmanship. The manufacturer reserves the right to repair or replace the unit. The manufacturer shall not be liable for claims arising from incorrect installation, unauthorized modification, or misuse of the product. These conditions do not affect your statutory rights.

The Whale Gusher Urchin manual bilge pump is designed for through-deck mounting. For installation, it is important to choose a location where the pump can be operated comfortably and where the full movement of the handle is possible.

Here are the key points for installation:

Handle positioning: Fixed and removable handle models (including the BP9021) offer flexibility in positioning the handle relative to the flow direction. The pump body can be rotated after loosening the clamping screw and the clamping ring. The inlet is always 180 degrees from the outlet.
Fixing: The pump must be secured using 6 mm (1/4”) bolts.
Pipe connections: The inlet/outlet fittings are stepped, allowing the use of 25 mm (1”) or 38 mm (1 1/2”) diameter hoses. If the larger diameter is required, simply saw off the 25 mm section.
Sealing: Use high-quality stainless steel worm-drive hose clamps to ensure leak-proof joints.
Additional tips: Install the pump in a location that is easily accessible for maintenance. The suction inlet should be at the lowest point of the bilge.

The Whale Gusher Urchin manual bilge pump is primarily designed for pumping and draining normal bilge water. It is important to note that its capacity may not be sufficient to handle a rapid influx of water.

Regarding maintenance, regular inspection of the pump is strongly recommended. Rubber components should be replaced if worn or, as a preventive measure, every three years regardless of apparent condition.

Service kits are available to simplify part replacement:

The AK9003 service kit is intended for clean bilge water (neoprene components). The AK9011 service kit is intended for oily bilge water (nitrile components). It is advisable to always keep a service kit aboard your boat.

Whale pumps come with a 5-year warranty from the date of purchase. This warranty covers material and manufacturing defects.

Note that rubber parts, which are consumables, are covered by a 1-year warranty from the date of purchase.

In case of unit failure, return it to your supplier with proof of purchase and the purchase date. The manufacturer reserves the right to repair or replace the unit. The warranty does not cover claims resulting from incorrect installation, unauthorized modifications, or misuse of the product.