Liberty Pumps 331 One-Half HP Portable Transfer Pump | Portable Water Transfer

Overview

The Liberty Pumps 331 One-Half HP Portable Transfer Pump is built for flexible, on‑the‑go water handling. It excels in quick water transfers, temporary pressure boosts, and draining tasks where a fixed installation isn’t practical. With its compact footprint and straightforward controls, it’s a practical companion for homeowners, service pros, boaters, and campers who need reliable pumping power without the commitment of permanent plumbing changes.

Durable, portable design

Engineered around a one‑piece cast aluminum housing that combines the pump and motor, this unit balances strength with portability. The integral carry handle makes transport simple, letting you move from source to discharge point with ease. Permanently lubricated bearings reduce maintenance needs and help the pump stay ready for the next job. An easy On/Off switch puts you in control when timing matters, whether you’re transferring water during maintenance or powering through a task in a hurry.

Performance at a glance

• 1/2 HP motor capable of pumping to over 100 feet of head
• Maximum discharge head of 105 feet
• Vertical suction lift up to 15 feet
• Delivers up to 40 pounds of pressure
• Not intended for permanent installations
• Made in America; Commercial brand: Liberty

Practical uses

• Boost temporary water pressure for short-term needs around the home
• Drain hot water tanks or service sinks quickly
• Transfer water between containers, tanks, or irrigation lines
• Ideal for temporary pumping tasks on jobsites, trailers, or during maintenance

Getting the most from your Liberty Pumps 331

For best results, place the pump close to the water source, connect the appropriate hoses, and use the integral carry handle to move it to the discharge point. This is a portable solution designed for temporary use, not a replacement for permanent plumbing. Always follow safety guidelines when operating with electricity and water, and unplug the unit when not in use.