Little Giant 5-ASP-LL 1500 GPH Automatic Utility Pump - Compact Power

In this review the Little Giant 5-ASP-LL is evaluated as a compact, automatic submersible utility pump best suited for emergency water removal, water transfer and small recirculation tasks. The single biggest reason to consider it is the built-in piggyback low-level diaphragm switch with an 18 ft cord that allows reliable automatic operation down to near-surface water levels, making it a practical choice for homeowners, hobby hydroponic users and light commercial applications that need a small, automatic pump.

Key Features

• Automatic low-level switch: The piggyback diaphragm switch starts pump operation at about 2 to 3 in and stops between 0.5 and 1.5 in, so it handles shallow drainage without manual intervention.
• Solid pumping capacity: Rated at 1500 GPH, the pump moves water quickly for its size, making it useful for emptying hot tubs, shallow pits, or recycling pool covers.
• Durable aluminum construction: Epoxy-coated die-cast aluminum housing resists wear and helps the unit stand up to repeated submersible use.
• Portable and compact: Weighing about 8 lbs with a built-in carry handle, it is easy to position and move for temporary or seasonal tasks.
• Simple manual override: The piggyback switch can be unplugged from the pump for direct manual operation when automatic control is not needed.
• Practical fittings and cord length: Includes a 3/4 in garden hose adapter and an 18 ft cord so it can reach power without extension cords in most setups.

Who It's For

This pump is ideal for homeowners who need a dependable, small submersible pump for emergency basement draining, hot tub or pool cover drainage, and hobby hydroponic recirculation. Its automatic low-level switch and compact size make it particularly useful where shallow water must be removed without constant monitoring.

It also suits light commercial or industrial tasks where portability and automatic operation matter, but it is not intended for heavy continuous industrial pumping or abrasive solids-laden fluids. Buyers who need higher head pressure, larger flow over long distances, or a pump rated for continuous heavy industrial duty should look at larger models.

Pros & Cons

Pros

• Reliable automatic operation down to low water levels thanks to the diaphragm piggyback switch.
• Good flow for size at 1500 GPH, effective for quick water removal in small to medium tasks.
• Sturdy epoxy-coated aluminum body and permanently lubricated oil-free motor for low maintenance.
• Portable 8 lb weight and 18 ft cord make placement and use convenient.

Cons

• Some users report variable longevity, so occasional premature failures have been reported despite many owners experiencing long service life.
• Not suitable for heavy solids or large continuous industrial pumping jobs.

Specifications

Model	5-ASP-LL
Power	1/6 HP, 115 Volt
Flow Rate	1500 GPH
Cord	18 ft piggyback cord
Switch	Low-level piggyback diaphragm (on 2-3 in, off 0.5-1.5 in)
Discharge	1 in FNPT with 3/4 in garden hose adapter
Construction	Epoxy-coated die-cast aluminum

Our Verdict

The Little Giant 5-ASP-LL is a sensible, value-minded choice for anyone needing a compact automatic submersible pump for shallow water removal and occasional transfer tasks. Its low-level diaphragm switch, sturdy aluminum housing and manageable 8 lb form factor deliver reliable performance for home, hobby, and light commercial use, though buyers needing heavy-duty continuous pumping should choose a larger industrial model.

Frequently Asked Questions

Can the pump run automatically at very low water levels?
The piggyback diaphragm switch turns the pump on at about 2 to 3 in and off between 0.5 and 1.5 in, and with the screen installed it will remove water down to about 1/8 in.

Is the cord length adequate for basement or outdoor use?
The pump includes an 18 ft cord on the piggyback switch which is sufficient for many basement and outdoor placements without needing an extension cord.

Can the switch be bypassed for manual use?
Yes, to run manually unplug the pump from the back of the piggyback switch and plug directly into a grounded outlet for continuous operation.