Description
The Liberty Pumps FL31A is a 1/3 HP, 115V, 1-Phase submersible effluent pump fl30-series. Utilizing the same heavy-duty design style as Liberty Pumps LE-Series sewage pumps, the FL30-Series offers a true commercial-grade low-head effluent pump with 3/4" solids handling capability. The FL30 features heavy cast iron construction, epoxy powder coat finish, and quick-conn
Compact Drain Pump — Below-Grade Drainage
Compact design for residential and light commercial gray water drainage applications below the gravity drain line — bar sinks, laundry trays, dehumidifiers, HVAC condensate, and utility sink drainage.
Automatic Float Switch Operation
Fully automatic operation via float switch — the pump activates when liquid level rises and deactivates when the basin empties. No manual intervention required for routine drainage operation.
Piggyback Plug — Manual Bypass
Piggyback plug design allows the motor cord to unplug from the switch and plug directly into the outlet for manual bypass operation if the float switch fails — prevents flooded floor from switch failure.
Gas-Tight Basin Construction
Sealed basin with gas-tight cover prevents sewer gas from escaping into the installation space — meets requirements for indoor residential and commercial installations.
Factory Pre-Assembled
Factory pre-assembled and tested as a complete system — pump, basin, cover, and float switch are installed and tested before shipment. No field assembly required.
Short Profile / Compact Options
Available in standard and short-profile configurations for installation in under-counter spaces, shallow crawl spaces, and mechanical rooms where standard-height basins will not fit.
| Model Number | FL31A |
| Series | FL30-Series |
| Category | Drain & Condensate Pumps |
| Horsepower | 1/3 HP |
| Voltage | 115V |
| Phase | 1-Phase |
| Discharge Size | 1-1/2"" |
| Solids Handling | 3/4" |
| Electrical | Requires a properly grounded GFCI receptacle meeting UL 943 requirements. Do not use an extension cord. |
| Fluid compatibility | For use with clean water and gray water only. Not for use with chemicals, flammable fluids, grease, hydrocarbons, sand, cement, or abrasives. |
| Warranty | 3-year Liberty Pumps limited warranty from date of purchase. Warranty voids for use with prohibited substances or field disassembly beyond normal maintenance. |