Generac 6798 Electric Diaphragm Pump (1800 GPH, 2in, 3-Phase)

Description

Generac 6798 Electric Diaphragm Pump (1800 GPH, 2in, 3-Phase)

The Generac Power Systems 6798 Electric Diaphragm Pump is a heavy-duty 2-inch industrial-grade dewatering pump designed for demanding construction, utility, and flood control applications. Built with a rugged diaphragm pumping system, it is capable of handling dirty water, sludge, sand, and solids-laden fluids without the clogging or impeller damage issues found in conventional centrifugal pumps.

Powered by a 3-phase electric motor, this model delivers reliable continuous-duty performance with low maintenance requirements and stable high-torque operation. With a maximum flow capacity of 1,800 GPH (30 GPM), the 6798 is ideal for trench dewatering, foundation work, confined-space pumping, and emergency water removal where consistent performance is critical.

The diaphragm design allows the pump to run dry without damage, making it highly suitable for intermittent water conditions commonly found on job sites and disaster response environments.

Key Features

• Industrial 3-phase electric motor for stable high-torque output
• Handles dirty water, sludge, sand, and debris without clogging
• Diaphragm design eliminates impeller wear and damage
• Self-priming system for fast and easy operation
• Can run dry without damage to pump components
• Heavy-duty construction for harsh job site conditions
• Low maintenance and long service life design
• Ideal for continuous dewatering applications
• Reliable performance in construction and emergency environments
• Skid or portable mounting options for flexibility

Applications

• Construction site dewatering
• Foundation and trench drainage
• Utility installation projects
• Flood water removal
• Sludge and muddy water pumping
• Confined-space dewatering
• Emergency disaster response
• Industrial water transfer

Generac 6798 Electric Diaphragm Pump (1800 GPH, 2in, 3-Phase): Buying Considerations

The Generac 6798 Electric Diaphragm Pump is a 2-inch, 3-phase industrial dewatering pump delivering up to 1,800 GPH. Designed for pumping dirty water, sludge, and debris, it features a durable diaphragm system, self-priming operation, and dry-run capability for construction and emergency applications.

Before ordering the Generac 6798 Electric Diaphragm Pump (1800 GPH, 2in, 3-Phase) from Generac, review the points below against your actual site conditions and workload. Published specifications describe the equipment under test conditions, and real-world performance depends on how closely your application matches those conditions. Buyers in the United States, Canada, and Asia should also confirm local voltage and frequency requirements, applicable safety or emissions standards, and freight or import logistics for the destination before finalizing an order.

What to Check Before You Buy

• Define required flow and total dynamic head at the discharge point – engine-driven pumps are commonly undersized when only flow rate is considered.
• Check suction lift, priming method, and maximum solids size the pump can handle without clogging.
• Verify fuel type and runtime requirements match the application, especially for extended dewatering or irrigation jobs.
• Confirm hose/fitting size matches the pump's rated port size to avoid unnecessary friction loss.

How much reserve capacity should an engine-driven pump have over the calculated requirement?

A reasonable margin accounts for pipe friction losses, fitting losses, and any future demand growth – undersizing based purely on a theoretical flow calculation without real-world losses is a common reason pumps underperform once installed.

For sizing help across the full Engine Driven Pumps category, compare specifications side by side before committing to a specific model, and confirm current pricing, availability, and freight details for your location. Keep the supplier data sheet and any acceptance criteria on record for future maintenance and replacement decisions.

Total Cost of Ownership

The purchase price of the Generac 6798 Electric Diaphragm Pump (1800 GPH, 2in, 3-Phase) is only part of the real cost of owning this equipment. Factor in routine maintenance parts, consumables specific to the Engine Driven Pumps category, fuel or energy use over the equipment’s service life, and the cost of downtime if a failure happens during a critical job. Equipment with a lower purchase price but weaker local parts availability or a shorter warranty period can end up costing more over three to five years than a model with a higher upfront price and stronger support.

Warranty and Support

Confirm the specific warranty terms Generac offers on this model, including coverage length, what is and is not covered (wear parts are frequently excluded), and whether the warranty is transferable if the equipment is resold. Check whether authorized service is available in your region before an issue comes up, rather than after – parts and qualified technician availability varies significantly by location and can be the deciding factor between two otherwise comparable machines.

Keep the original purchase documentation, serial number, and any commissioning or acceptance records together – this documentation is typically required to make a warranty claim and simplifies any future resale or insurance process.

Looking for the Generac 6798 Electric Diaphragm Pump (1800 GPH? This model is a popular choice among buyers who need dependable performance from the Generac 6798 Electric Diaphragm Pump (1800 GPH. Our team frequently recommends the Generac 6798 Electric Diaphragm Pump (1800 GPH for its balance of build quality, reliability, and value in daily industrial use.