Whale Marine BP4572 Gulper Grouper 12V Fishbox Waste Pump, Macerator Pump Replacement

The Whale Marine BP4572 Gulper Grouper is a 12V remote-mount waste pump built to empty fishboxes, livewells, and baitwells without the clogging and burnout problems common to macerator pumps. Instead of a spinning impeller and cutting blades, the Gulper Grouper uses diaphragm pump technology with non-choke valves, so there is no impeller to jam or burn and no filter to clean out. The pump moves up to 6.75 US gallons (25.5 liters) per minute and can run dry without damage, making it a durable choice for boats that need reliable fishbox drainage over many seasons.

A 360 degree multi-directional head lets the BP4572 be mounted almost anywhere space allows, and its dual 1 inch / 1-1/2 inch hose connections match standard fishbox and bilge plumbing without needing an adapter. Because a single Gulper Grouper can be plumbed to serve multiple wells, one pump can do the job that would otherwise require a separate macerator on each well, cutting both installation time and cost. The pump runs on 12 volts DC, draws a modest 5 amp dry-running current, and is protected by a recommended 10 amp automotive fuse, so it is easy on the battery bank. Housed in aluminum, corrosion-resistant steel and brass, and glass-filled nylon, the BP4572 is built to hold up in the marine environment while staying easy to maintain.

Specifications

• Brand: Whale Marine
• Manufacturer Part Number: BP4572
• Voltage: 12 Volts DC
• Recommended Fuse Size: 10 Amp automotive
• Minimum Wire Size: 16 AWG
• Weight: 4.9 pounds
• Flow Rate: 6.75 US Gallons (25.5 Liters) per minute
• Maximum Suction Lift: 1.7 feet (0.5 meters)
• Maximum Discharge Head: 10 feet (3 meters)
• Dry Running Current: 5 Amps
• Hose Connections: 1 inch / 1-1/2 inch
• Head Rotation: 360 degrees
• Material: Aluminum, corrosion-resistant steel and brass, glass-filled nylon
• Color: Black/Blue
• Product Dimensions: 11.31 inches L x 11.22 inches W x 4.63 inches H
• Warranty: 2 Year Warranty
• Included Components: Gulper IC Pump Unit, Sensor/Strainer, NRV (Non Return Valve), Straight Inlet/Outlet, Fuse, Fixing Kit, Instructions

Frequently Asked Questions

What is the Whale Marine BP4572 Gulper Grouper used for? The BP4572 Gulper Grouper is a 12V remote-mount waste pump designed to empty fishboxes, livewells, and baitwells, moving up to 6.75 US gallons (25.5 liters) per minute.

Can the Gulper Grouper BP4572 replace a macerator pump? Yes, the BP4572 is designed as an alternative to macerator pumps, using diaphragm pump technology with no impeller to clog, jam, or burn out.

What hose sizes does the BP4572 use? 1 inch and 1-1/2 inch hose connections are both supported on the Whale Marine BP4572, matching standard fishbox and bilge plumbing without needing an adapter.

How much does the Whale Marine BP4572 weigh? 4.9 pounds is the weight of the Whale Marine BP4572 Gulper Grouper pump.

What voltage does this pump run on? 12 volts DC powers the Whale Marine BP4572, which draws a dry-running current of 5 amps and is protected by a recommended 10 amp automotive fuse.

Can the BP4572 run dry without being damaged? Yes, the Gulper Grouper is built to run dry without damage, giving it long-term durability compared to pumps that fail if they lose prime.

What is included in the box with the BP4572? The Whale Marine BP4572 ships with the Gulper IC pump unit, a sensor/strainer, an NRV (non-return valve), straight inlet/outlet fittings, a fuse, a fixing kit, and installation instructions.

How far can the BP4572 lift or discharge waste water? Maximum suction lift is 1.7 feet (0.5 meters) and maximum discharge head is 10 feet (3 meters) for the Whale Marine BP4572 Gulper Grouper.

Can one BP4572 pump serve multiple wells? A single Whale Marine BP4572 can be plumbed to serve multiple wells, reducing the need to install a separate pump for each one.

What material is the BP4572 pump housing made from? Aluminum, corrosion-resistant steel and brass, and glass-filled nylon make up the housing and hardware of the Whale Marine BP4572.

Does the Gulper Grouper head rotate for tight installations? 360 degree head rotation lets the Whale Marine BP4572 fit into tight or awkward mounting spaces where a fixed-head pump would not.

What warranty comes with the Whale Marine BP4572? A 2 year warranty covers the Whale Marine BP4572 Gulper Grouper waste pump.