Model 185 Effluent Pump

Product Details

The Model 185 effluent pump is part of Zoeller’s High Head Flow‑Mate Series, engineered specifically for high‑pressure and long‑distance effluent applications such as STEP systems, pressure‑dose fields, engineered treatment processes, and situations requiring consistent performance against substantial head. With its rugged cast‑iron construction and corrosion‑resistant hardware, the Model 185 is built for long‑term reliability under continuous or heavy‑duty operating conditions.

Powered by a 1 HP oil‑filled Permanent Split Capacitor or 3‑phase motor, this pump delivers superior thermal dissipation, enabling it to operate in sustained high‑head environments without overheating. Its non‑clogging vortex impeller, cast from durable iron, passes 3/4‑inch spherical solids—a key requirement for effluent systems where solids content can vary.

The Model 185 is available in both automatic and nonautomatic configurations, providing flexibility for installers designing custom dosing cycles or integrating the pump into engineered control systems. Automatic models feature fixed float actuation points for predictable cycling. The automatic versions are not recommended for septic effluent applications, while nonautomatic versions pair with external variable‑level float switches or control panels, allowing precise control tailored to basin dimensions and dosing requirements.

With performance ratings up to 73 feet of head and 85 gallons per minute, the Model 185 delivers exceptional power and efficiency within its class. Every unit undergoes 100% factory performance testing, ensuring compliance with published curves and consistent reliability in the field. The Model 185 is backed by Zoeller’s limited warranty for long‑term peace of mind.

Features and Benefits

• Oil-filled motor and cast iron motor housing for optimal heat dissipation which prevents the pump from overheating
• Automatic configurations use fixed float activation points for consistent dosing levels, while nonautomatic models pair with external float systems or control panels, allowing precise pump cycling tailored to basin sizing and field‑engineered requirements.
• Corrosion resistant cast iron vortex impeller to allow free passage of 3/4" spherical solids which prevents clogging and increases reliability
• Automatic units include controlled float mechanisms; nonautomatic versions require external float switches or control systems
• Automatic versions include integrated switching (not recommended for septic effluent applications); nonautomatic units must be paired with a piggyback float switch or control panel depending on phase and voltage configuration
• Stainless steel screws, handle, and hardware to prevent rust and corrosion
• Powder-coated epoxy finish provides corrosion-resistance and extends the life of the pump in harsh environments
• 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 1-year limited warranty giving you protection over your investment and the peace of mind you expect in a quality product

Product Specifications