Sumo Amphibious Water Pump No. 3 3000L/h – Aqua Zonic G2-3

The Aqua Zonic Sumo Amphibious Water Pump No. 3 3000L/h is a versatile aquarium water pump designed for reliable circulation, sump returns and water transfer. Featuring a powerful 3000L/h maximum flow rate, energy-efficient 30W motor and 2.6m maximum head height, the Sumo G2-3 provides a practical pumping solution for freshwater and marine aquarium systems.

Unlike standard submersible aquarium pumps, the Sumo G2-3 features an amphibious design, allowing it to operate either fully submerged in water or externally as an in-line pump when installed correctly.

Its ceramic shaft, epoxy-encapsulated electronic components and built-in motor overheat protection make it a versatile choice for aquarium hobbyists looking for a dependable return pump.

Why Choose the Aqua Zonic Sumo G2-3?

• Powerful 3000L/h output: Provides effective water circulation and return flow for compatible aquarium systems.
• Amphibious installation: Can operate submerged in a sump or externally when correctly plumbed.
• 30W power consumption: Efficient motor designed for continuous aquarium circulation.
• 2.6m maximum head height: Suitable for a range of sump return and water transfer applications.
• Freshwater and marine compatible: Suitable for tropical, cichlid, reef and other aquarium systems.
• Ceramic shaft: Wear-resistant design suitable for freshwater and saltwater use.
• Epoxy-encapsulated electronics: Helps protect internal electrical components.
• Motor overheat protection: Built-in protection helps reduce the risk of damage from overheating.
• Quiet operation: Designed to minimise operating noise when installed correctly.
• Versatile applications: Suitable for aquarium sumps, water circulation, water transfer and compatible pond or fountain systems.

Submersible or External Aquarium Pump

One of the main advantages of the Sumo G2-3 is its flexible installation design.

Submersible Installation

The pump can be installed fully submerged inside a suitable aquarium sump or filtration chamber. This is a common arrangement for returning filtered water to the display aquarium.

Ensure the pump has sufficient water around it and that the intake is not obstructed by debris, filter media or equipment.

External In-Line Installation

The Sumo G2-3 can also be installed outside the aquarium or sump as part of a properly plumbed water circulation system.

External installation can help save space inside the sump and provide easier access for inspection and maintenance.

Important: The pump must be supplied with water during operation. External installation does not mean the pump can be operated dry. Follow the manufacturer's installation and priming instructions.

Ideal for Aquarium Sump Return Systems

The Sumo G2-3 is a practical option for moving water from an aquarium sump back into the display tank.

Its rated 3000L/h maximum flow provides useful capacity for a range of freshwater and marine systems, while the 2.6m maximum head height allows water to be lifted through compatible return plumbing.

For sump return use, choose your pump according to the actual return flow required after accounting for vertical lift, pipe length, bends and restrictions.

A pump rated at 3000L/h will normally deliver less than this once installed in an aquarium return system. Maximum head height is the point where the pump can no longer provide meaningful flow, not a recommended operating height.

Suitable Aquarium and Water Pump Applications

• Freshwater aquarium sumps: Return filtered water to tropical, goldfish and cichlid display aquariums.
• Marine aquarium sumps: Provide return circulation in compatible saltwater aquarium systems.
• Aquarium water circulation: Move water between suitable filtration chambers or connected systems.
• Water transfer: Transfer clean water between compatible holding tanks or containers.
• Ponds and fountains: Suitable for selected applications where the required flow and head height are within the pump's specifications.
• Hydroponic systems: Can be used for appropriate water circulation applications.

For installations requiring high pressure, long pipe runs or substantial vertical lift, a higher-head pump may be more appropriate.

Understanding Flow Rate and Head Height

The Sumo G2-3 has a maximum flow rating of 3000 litres per hour and a maximum head height of 2.6 metres.

These measurements describe different aspects of pump performance:

• Maximum flow – 3000L/h: The pump's rated flow under minimal resistance.
• Maximum head – 2.6m: The approximate maximum vertical lift at which flow approaches zero.
• Installed flow: The actual amount of water delivered through your aquarium plumbing.

Actual flow depends on vertical lift, pipe diameter, fittings, bends, restrictions and the condition of the pump.

When selecting a sump return pump, assess the required flow at your installation's working head height rather than relying only on the maximum flow rating.

Reliable 30W Motor with Ceramic Shaft

The Sumo G2-3 uses a 30W motor with a wear-resistant ceramic shaft, providing a practical balance between pumping capacity and electricity consumption.

Its electronic components are encapsulated in epoxy resin, while the motor incorporates overheat protection for increased durability.

The pump is designed for quiet operation, although sound levels depend on installation, plumbing, vibration and regular maintenance.

Installation and Maintenance Tips

1. Confirm that the pump's flow rate and maximum head height are suitable for the intended aquarium system.
2. Position the pump securely in the sump or install it externally using the appropriate plumbing.
3. Fit the supplied connections using correctly sized hose or compatible pipework.
4. Ensure that the pump and intake remain supplied with water during operation.
5. Check that hoses and fittings are secure and that water can flow freely.
6. Connect the pump according to the supplied electrical and installation instructions.
7. Inspect water flow, fittings and operating noise after starting the pump.
8. Clean the intake and impeller assembly regularly to remove accumulated debris or mineral deposits.

Maintenance tip: Disconnect power before handling or opening the pump. Avoid operating the motor without water, and keep the impeller chamber free from sand, gravel and other abrasive debris.

Product Specifications

• Brand: Aqua Zonic
• Range: Sumo G2 Amphibious Water Pumps
• Model: G2-3 / No. 3
• Distributor SKU: SMO03
• Manufacturer reference: PH105
• Barcode: 8887677530304
• Maximum water flow: 3000 litres per hour
• Maximum head height: 2.6 metres
• Power consumption: 30W
• Pump dimensions: Approximately 145 x 190 x 130mm
• Connection fittings: 1 x 19/25mm fitting and 2 x 25mm fittings, according to published product specifications
• Pump shaft: Ceramic
• Motor protection: Overheat protection
• Installation: Fully submerged or externally plumbed in-line
• Water compatibility: Freshwater and saltwater
• Applications: Aquarium circulation, sump returns, water transfer and suitable pond or fountain systems
• Published warranty: 1 year

Frequently Asked Questions

Can the Sumo No. 3 water pump be used outside the aquarium?

Yes. The Sumo G2-3 is an amphibious pump that can operate fully submerged or externally when correctly installed in a water-filled, in-line system. It must not be operated without water.

How much water does the Sumo G2-3 pump move?

The pump has a maximum rated flow of 3000 litres per hour. Actual flow will be lower when pumping water through vertical pipework, bends, fittings or other restrictions.

What is the maximum head height of the Sumo 3000L/h pump?

The maximum head height is 2.6 metres. This represents the pump's approximate maximum lifting capability, not the height at which it still delivers 3000L/h.

Is the Sumo G2-3 suitable for saltwater aquariums?

Yes. The Aqua Zonic Sumo G2-3 is suitable for both freshwater and marine aquariums and features a wear-resistant ceramic shaft.

How much electricity does the Sumo No. 3 pump use?

The pump is rated at 30W. Actual electricity costs depend on the operating schedule and your electricity tariff.

Can I use the Sumo G2-3 as a sump return pump?

Yes. It is suitable for aquarium sump return applications where its delivered flow at the required head height meets the system's needs.

Does the Sumo G2-3 have overheating protection?

Yes. The motor includes overheat protection to help reduce the risk of damage from overheating. It should still be installed correctly and must not be deliberately run dry.

What is the difference between the Sumo G2-2 and G2-3?

The G2-2 is rated at 1800L/h, 18W and 2.2m maximum head height. The G2-3 is rated at 3000L/h, 30W and 2.6m maximum head height, making it suitable for installations requiring greater pumping capacity.