Little Giant 5-MSP 115V Manual Utility Pump - Compact 1500 GPH

In this review of the Little Giant 5-MSP submersible utility pump, the bottom line is simple: it is a compact, durable option for routine water transfer and emergency removal where portability and continuous duty matter most. The reviewer finds the pump best suited to homeowners and tradespeople who need a modest but reliable mover for flood water, pool and hot tub drainage, or hydroponic recirculation, with the single biggest reason to buy being its combination of 1500 GPH flow and a built-in 25-ft power cord that makes setup quick and flexible.

Key Features

• Submersible design: Engineered for submerged operation so it can remove water down to 1/8 in with the screen in place, making it useful for near-complete drainage tasks.
• Power and efficiency: A 1/6 HP permanently lubricated shaded pole motor produces up to 1500 GPH while drawing about 2.0 running amps for modest energy use.
• Durable construction: Epoxy coated die-cast aluminum housing and thermal overload protection add durability for commercial, industrial, and home environments.
• Convenient hookups: Comes with a 1 in FNPT discharge and a 3/4 in garden hose adapter for easy connection to common hoses and fittings.
• Portable size: Weighing about 7.4 lbs. with a built-in carry handle, it balances portability with pumping capacity for moving between jobs.
• Removable screen: The protective screen guards the impeller and motor but can be removed to drop the minimum water level further to 1/16 in.

Who It's For

The 5-MSP is aimed at homeowners, hobby gardeners, and light commercial users who need a simple, continuous duty pump for water transfer, small floods, pool or hot tub drainage, and hydroponic recirculation. Its portability and 25-ft cord make it practical for situations where positioning and reach matter.

Those who should look elsewhere include users needing very high head pressure or long continuous pumping at extreme duty cycles, and anyone who requires a self-priming above-ground pump; this model is strictly for submersible use and is not intended for heavy industrial duty beyond the specs provided.

Pros & Cons

Pros

• Good flow rate for its size, offering effective water removal up to 1500 GPH.
• Durable epoxy coated aluminum body and thermal overload protection for longer life in typical use.
• Lightweight and portable with a 25-ft cord and built-in handle for easy deployment.

Cons

• Some customers report variability in long-term reliability, so occasional failures have been noted despite many units lasting decades.
• Strictly submersible - cannot be used as an above-ground or self-priming pump.

Specifications

Our Verdict

The Little Giant 5-MSP is a sensible, value-oriented submersible pump for homeowners and light commercial users who need reliable water transfer and drainage with minimal fuss. Its balance of portable design, protective construction, and decent flow rate make it a good choice for pools, hot tubs, flood sump, and hydroponic setups, though buyers should accept that lifespan can vary with usage and care.

Frequently Asked Questions

Can this pump run continuously?
Yes, it is rated for continuous duty and includes thermal overload protection to help prevent motor damage under normal continuous use.

How low will it pump water?
With the removable screen installed it will pump down to about 1/8 in; removing the screen lowers the pickup to about 1/16 in.

Is it able to connect to standard garden hoses?
Yes, it has a 1 in FNPT discharge plus a 3/4 in garden hose adapter for common hose connections.