Franklin Electric Grinder Pumps
- Choose from the IGP Series, High Head IGP Series, and Retrofit Kit
- Grinds raw sewage at 414,000 cuts per minute
- Manual models for panel control, automatic models with built-in start parts
- Single phase and three phase options at 208-230V or 460V
- Send us your model number and we will confirm the right fit
At 414,000 cuts per minute, a Franklin Electric sewage grinder pump turns toilet waste, paper, and kitchen scraps into slurry before it leaves the basin. That slurry can travel uphill through a 1-1/4 inch pipe, while a standard sewage ejector is built for shorter lifts. This page lines up the three FPS models, the manual versus automatic split, and the details to read off your old pump.
IGP, IGPH, or Retrofit Kit: Matching the Pump to Your Basin
If your force main is short and fairly flat, the standard IGP Series fits. Long or uphill runs need the High Head IGP Series, which reaches 200 feet of shutoff head. If you are replacing an old positive displacement grinder, the Retrofit Kit drops into the existing basin as a complete assembly.
Franklin Electric Sewage Grinder Pump Models Compared
| Model | Hydraulics | Rated flow | Shutoff head | Best use |
|---|---|---|---|---|
| IGP Series | Single stage | 32 GPM at 20 ft | 130 ft | Standard homes and light commercial |
| High Head IGP Series (IGPH) | Dual stage, upper and lower brass impellers | 30 GPM at 100 ft | 200 ft | Long force mains and big lifts |
| Grinder Pump Retrofit Kit | IGP-A-RFKS (standard) or IGPHR-A-RFK (high head) | 31 GPM at 40 ft or 30 GPM at 100 ft | 130 ft or 200 ft | Replacing a positive displacement grinder |
IGP Series
The IGP is the core pump inside Franklin's simplex, duplex, and PowerSewer stations. It uses a seven-vane, non-clogging brass impeller and a carbon/ceramic mechanical seal. The epoxy-coated finish helps it resist corrosion in the wet well.
High Head IGP Series
The IGPH adds a second hydraulic stage to build more pressure without a bigger motor. It still runs on 2 hp. Pick it when the discharge point sits well above the pump or the pipe run is long.
Grinder Pump Retrofit Kit
The kit pairs a 2 hp automatic grinder pump with a 1-1/4 inch cast iron anti-siphon check valve and a preset alarm float. The wiring sits in a dry top enclosure on an epoxy-coated steel cover. You swap the working parts and keep the basin, the wet well, and the force main.
Grinder or Ejector: Why Slurry Travels Farther
A sewage ejector passes soft solids whole through a larger pipe. It works well for a short lift from a basement bathroom into a gravity line.
A grinder cuts every solid into slurry first. That lets it push waste much farther and higher through a small force main, which is why low-pressure sewer districts use grinders.
IGP-M Manual vs. IGP-A Automatic
Get this wrong and the pump will not start. The letter after "IGP" in the model number tells you which one you have.
- Manual (IGP-M): no internal float or starting parts. It needs a matching FPS control panel that supplies the start relay, capacitors, and float control.
- Automatic (IGP-A): the start components are mounted inside the pump. It suits simple single-pump basins.
Franklin notes that single-phase manual High Head models need a specific FPS panel or capacitor kit for proper operation and third-party approval. Order the pump and panel together so they match.
Four Details to Read Off Your Old Pump
- Read the nameplate on your old pump and write down the model number.
- Note the voltage and phase at your panel: 208-230V single phase, 208-230V three phase, or 460V three phase.
- Check whether your station has a separate control panel. If it does, you likely need a manual model.
- Measure the lift and the length of the force main so we can confirm standard or high head.
Not sure your job needs a full 2 hp pump? Our 2 hp grinder sizing guide walks through the head math step by step.
If you are starting from bare ground, a single pump is only part of the job. A complete grinder station includes the basin, floats, and discharge parts.
Frequently Asked Questions
Is there a difference between a sewage pump and a grinder pump?
Yes, there is a real difference between a sewage pump and a grinder pump. A sewage pump, often called an ejector, passes soft solids whole through a larger discharge pipe over a short distance. A grinder pump cuts the solids into slurry first, then pushes it under pressure through a small pipe. The Franklin IGP, for example, has a 1-1/4 inch discharge and grinds at 414,000 cuts per minute. Choose a grinder when the sewer is far away or uphill.
What does a grinder pump do to sewage?
A grinder pump turns raw sewage into a fine slurry. Waste flows from the building drain into a wet well. When the level rises, the pump starts and its cutter shreds the solids. The impeller then pushes the slurry under pressure through a small force main to the municipal sewer or a treatment system. Because the solids are ground up, the slurry can travel uphill and over long distances without clogging the pipe.
What not to put in a grinder pump?
Do not put grease, oil, or fat into a grinder pump, because it hardens in the basin and coats the floats. Keep out wipes, even ones sold as flushable, plus paper towels, diapers, feminine products, dental floss, and rags, since they can wrap the cutter. Strong drain chemicals and paint can harm the seal. Regular toilet paper is fine, because it breaks down in water. Stick to human waste, toilet paper, and normal household water.
Send us the model number from your old pump or your site details, and we will quote the right Franklin sewage grinder.