Model 820 Grinder Pump

Product Details

The Zoeller Model 820 Shark® grinder pump is engineered for applications where higher horsepower, aggressive solids reduction, and dependable pressure sewer performance are required. Designed for demanding residential and light commercial installations, the 820 combines a powerful 2 HP oil‑filled motor with Zoeller’s proven Tri‑Slice® grinder technology to ensure consistent, clog‑free operation. With the ability to reach 107 feet of head and 46 GPM.

At the heart of the Model 820 is the Tri‑Slice® cutter system, constructed from hardened 440C stainless steel and engineered to produce a scissor‑style cutting action. This system efficiently shreds sewage solids down to a slurry, enabling smooth transport through small‑diameter pressure sewer piping and minimizing downstream blockages. The grinder assembly is paired with a vortex impeller featuring an engineered glass‑filled plastic body with a stainless‑steel insert, offering an effective balance of efficiency and wear resistance.

The pump’s heavy‑duty cast‑iron motor housing and pump housing combined with an epoxy powder‑coated finish, provide corrosion resistance and structural strength in aggressive wastewater environments. The oil‑filled motor design promotes excellent heat dissipation, allowing the Model 820 to operate cooler during extended run cycles. Stainless‑steel hardware, a stainless‑steel motor shaft, and carbon/ceramic mechanical seals further enhance durability and reliability.

The Model 820 is available in automatic and nonautomatic configurations. Automatic versions utilize a variable‑level float switch for dependable cycling, while nonautomatic models are designed to integrate seamlessly with simplex or duplex control panels in engineered sewer systems. Each pump is 100% factory tested prior to shipment to ensure hydraulic, electrical, and cutting performance meets Zoeller’s rigorous standards.

Backed by Zoeller’s Shark® grinder pump technology and decades of wastewater engineering expertise, the Model 820 provides powerful grinding performance, dependable pressure sewer operation, and long‑term peace of mind for demanding grinder pump applications.

Features and Benefits

• Oil-filled motor and cast iron motor housing for optimal heat dissipation which prevents the pump from overheating
• Available in automatic or nonautomatic configurations. Nonautomatic versions without a float switch require a control panel for proper operation.
• Proven Tri-Slice® cutter technology: Three independent cutting channels provide over 250,000 cuts per minute
• Vortex‑style, engineered glass‑filled plastic impeller with a stainless‑steel insert balances pumping efficiency with abrasion resistance
• Automatic models utilize a variable‑level float switch; nonautomatic models integrate with simplex or duplex control panels
• Powder-coated epoxy finish provides corrosion-resistance and extends the life of the pump in harsh environments
• Stainless steel screws, handle and hardware to prevent rust and corrosion over the life of the pump
• 100% Factory Tested - every pump is submerged in water and tested at the factory to ensure that it performs as expected when you receive it
• Comes with a 3-year limited warranty giving you protection over your investment and the peace of mind you expect in a quality product

Product Specifications