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Automatic Bilge Pump 1100GPH

SKU: ABP1100-12
26.00€
26.00€
Subtotal: 26.00€

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Automatic Bilge Pump 12V – 1100 GPH, Submersible with Built-in Float Switch

Automatic 12V bilge pump for boats, sailboats, RIBs and tenders up to 9 m / 30 ft.

The BAYWATT 12V automatic bilge pump 1100 GPH is designed to evacuate bilge water without manual intervention. Its built-in float switch activates the pump when the water level rises and stops it automatically when the bilge is drained.

Compact, submersible and easy to install, this marine bilge pump is suitable for fresh or saltwater bilges. It can be used as a main pump on small boats or as a backup bilge pump on larger installations.

12V DC 1100 GPH ≈ 70 L/min IP68 submersible Built-in float switch Automatic + manual wiring
High flow rate

1100 GPH

Approx. 4164 L/h

Fast bilge water evacuation

Automatic operation

Built-in float switch

Starts at 40–50 mm

Stops at 20–30 mm

Manual override

Three-wire setup

Automatic mode

Manual pump control

Marine construction

Reinforced ABS body

Sealed motor

Stainless steel shaft

Key Features

  • Automatic bilge pump 12V: activates according to water level thanks to the integrated float switch.
  • 1100 GPH flow rate: approximately 4164 L/h or 70 L/min under ideal conditions.
  • Submersible IP68 design: suitable for installation in wet bilge compartments.
  • 6600 RPM motor: copper-wound motor with stainless steel shaft for reliable marine use.
  • 29 mm outlet: standard 1-1/8" outlet for common bilge pump hoses.
  • Removable strainer: quick-release base for cleaning and blockage prevention.
  • Anti-clog impeller: helps reduce obstruction from small debris in the bilge.
  • Compact body: 145 x 94 x 117 mm, easy to install in narrow bilge spaces.

Product Description

This submersible automatic bilge pump is designed for small and medium-sized boats requiring reliable water evacuation from the bilge. It is suitable for rainwater, spray, condensation and small water ingress when the boat is moored or left unattended.

The integrated float switch removes the need for a separate external float switch. This saves space, reduces wiring complexity and makes the installation easier in compact bilge compartments. The pump can be wired for permanent automatic operation, with an optional manual override switch for direct control from the dashboard.

Installation note: for unattended bilge protection, the automatic feed should be protected by a fuse or circuit breaker and connected so the pump can still operate when the main battery switch is turned off. Keep the protection device close to the battery positive terminal.

Operation

The pump starts automatically when the water level reaches approximately 40–50 mm and stops when the level drops to approximately 20–30 mm. The three-wire configuration allows both automatic mode and manual override.

  • Black wire: connect to battery negative (-)
  • Brown-white wire: connect to +12V for automatic float switch mode
  • Brown wire: connect through a switch for manual override

For manual control, use a marine ON-OFF-(ON) switch, a momentary override push button or a dedicated bilge pump control panel.

Wiring Solution

Pre-wired control panel: use the IBPB bilge pump control panel with ON-OFF-(ON) switch, buzzer alarm and LED indicator.

Custom dashboard setup: combine an ON-(ON) 22 mm override push button with an RGB indicator push button for a clean dashboard installation with customizable symbols.

Alternative wiring: keep the pump in permanent automatic mode and add a momentary (ON)-OFF push button as a manual bypass. The RGB indicator can be used as visual feedback: green = pump running, blue = standby, red = manual override.

Applications & Compatibility

  • Motorboats up to 9 meters
  • Sailboats up to 30 feet
  • RIBs, tenders and small fishing boats
  • Backup bilge pump installation on larger vessels
  • Freshwater or saltwater bilge compartments
Workshop note: a 1100 GPH bilge pump is well suited for rainwater, spray and small water ingress. For boats exposed to heavier water entry, it can be combined with a higher-capacity bilge pump or a separate high-water alarm.

For water evacuation only. Do not use this pump with fuel, oil, hydrocarbons, solvents or flammable liquids. Avoid prolonged dry running.

Package Contents

  • 1 x BAYWATT 12V automatic bilge pump – 1100 GPH
  • Pre-installed wiring, approximately 1 m
  • Installation manual with wiring diagram

Useful Links

Technical Specifications

Voltage 12V DC
Flow rate 1100 GPH, approximately 4164 L/h / 70 L/min
Max head 4 m
Motor speed 6600 RPM
Current draw 3.8 A
Automatic start level 40–50 mm
Automatic stop level 20–30 mm
Outlet diameter 29 mm, 1-1/8"
Dimensions 145 x 94 x 117 mm
Weight 0.52 kg
Body material Reinforced ABS
Shaft material Stainless steel
Motor winding Copper
Ingress protection IP68 – submersible
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How to use :

Discover tips, tricks, and detailed instructions on using our product in our dedicated blog post. Learn about setup, operation, and optimization to get the most out of your purchase.


Link to the blog