DISCONTINUED WITHOUT REPLACEMENT

Liberty Pumps — A Family and Employee Owned Company · Bergen, New York · Since 1965

Model 3310000 · Model 331 · Sump Pumps

1/2 HPSump PumpsSSPMA Certified3-Year Warranty

The Liberty Pumps 3310000 is a 1/2 HP casting aluminum for use with model 331-b10, 331-b18, 331-b44, 331-b59, series 331. This portable pump is perfect for boosting waterpressure, draining hot water tanks and general water transfer. Features include:

Horsepower

1/2 HP

Series

Model 331

Series

Model 331

SSPMA Certified

Certified to SSPMA standards for residential sump pump performance

1/2 HP — Residential Grade

Thermal overload protection — motor automatically resets after cooling, preventing burnout

Authorized Dealer

PumpStop is an authorized Liberty Pumps distributor — full warranty coverage

Expert Support

Technical specialists available — call (781) 281-8905 or chat

Why This Product

Submersible Design — Continuous Basement Protection

Submersible construction allows the pump to operate fully submerged in the sump pit — the correct installation for reliable, automatic basement drainage protection. The motor is oil-filled for heat dissipation and continuous duty rating.

Thermal Overload Protection — Auto Reset

Integral thermal overload protection in the motor windings automatically shuts the pump down if the motor overheats and resets automatically once cooled. Prevents motor burnout from blocked discharge or extended run-dry conditions.

Vortex Impeller — Solids Handling Without Clogging

Vortex-style impeller passes solids without direct impeller contact — the fluid vortex carries solids through without lodging them in the impeller passages. Critical for sump applications where the pit accumulates debris, sand, and particulates.

Quick-Connect Power Cord

Quick-connect cord design allows replacement of the power cord without breaking the motor seal — the most common cause of submersible pump failure is a damaged cord. Field-replaceable cord extends pump service life significantly.

Multiple Switch Styles Available

Available with no switch (manual), wide-angle float, vertical magnetic float, and VMF switch configurations — select the switch type matched to your sump geometry, pit diameter, and automatic operation requirements.

Liberty Pumps — Bergen, New York

Manufactured in Bergen, New York — Liberty Pumps has produced submersible sump pumps in the USA since 1965. Over 50 years of residential and commercial pump experience, with a 3-year limited warranty on most products.

Technical Specifications

Model Number	3310000
Series	Model 331
Category	Sump Pumps
Horsepower	1/2 HP

Key Features

General Water Transfer

Draining Water Heaters

Boosting Water Pressure by 40 lbs

C harging Hydronic Floor Systems 55

O ne-piece cast aluminum pump and motor 45 25 housing with integral carry handle 40

Durable epoxy powder coat finish 30 30

20' power cord

Convenient On/Off switch 15 35

3/4" brass garden hose connectors 5 0

Glass reinforced thermoplastic impeller 400 600 800 1000 1200 1400

Permanently lubricated ball bearings

L arge prime plug with internal funnel design Suction Lift for easy priming (In Feet)

Easily replaced motor brushes NOTE: The model 331 is not intended for use in wet

Maximum discharge head of 105' damp areas. Motor is not submersible

Maximum suction lift of 15' Not intended to pump chemicals or flammable liquids. Motor brushes requi

📄 Installation Notes

1/2 hp Portable Transfer Pump Installer: Manual must remain ph: 1-800-543-2550 or contact Liberty Pumps at 1-800-543-2550. Mfg Date:

Important Notices

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.

Available Documentation

✓ Sales Literature / Product Brochure

✓ Installation Manual

Need the installation manual, spec sheet, or product brochure? Contact PumpStop and we'll send it over.

Before You OrderConfirm voltage and switch type are correct for your installation. For sizing and compatibility guidance, chat or call (781) 281-8905.