PUMP CATEGORY

EGO 500 Puddle Pumps - GI, SE LS and GI LS Compared | Simaco

The Simaco EGO 500 puddle pump comes in three variants, the original GI, the fully automatic SE LS, and the low-suction GI LS, all sharing the same Italian-built motor and chassis but offering very different control and drainage capabili...

Products in range 3
From £215£179.17 (Exc VAT)
Power 0.5 kW
Warranty 1 year
3 products
Simaco 5.0

EGO 500 SE LS Automatic Puddle Pump | Adjustable Electronic Sensors

  • The fully automatic EGO 500, draws water down to 1mm without manual intervention
  • Adjustable electronic sensors replace the mechanical float
  • Set start level anywhere from 125mm down to 15mm
  • Set stop level down to 3-5mm with run-on for 1mm pumping
  • Supplied with non-return valve
£309.00 £257.50 (Exc VAT)
In stock
View
Simaco 5.0

EGO 500 GI Puddle Pump | 9mm Solids, Manual & Automatic

  • The original EGO 500 with 9mm solids handling for debris-laden water
  • Dual manual or automatic operation via float switch
  • Auto mode starts at 130mm, stops at 70mm
  • Manual mode pumps down to 10mm
  • 230v 3 Pin Domestic Plug
£215.00 £179.17 (Exc VAT)
In stock
View
Simaco

EGO 500 GI LS Puddle Pump | Low-Level to 1mm, Manual & Auto

  • Pumps down to just 1mm in manual mode for clean-water low-level-suction applications
  • Dual manual or automatic operation via mechanical float switch
  • Auto mode starts at 130mm, stops at 70mm
  • Flat-base low-suction body restricts inlet to 1mm (clean water only)
  • More affordable than the SE LS where electronic sensors aren't needed
£235.00 £195.83 (Exc VAT)
In stock
View
The EGO 500 Range Explained

The EGO 500 Range Explained

Simaco have built submersible pumps in Italy for over 45 years, and the EGO 500 is their flagship domestic submersible. The range has evolved in three steps. The GI came first, offering dual manual and automatic operation through a simple lever-set mechanical float. The SE LS followed, replacing the float with adjustable electronic sensors so users could set their own start and stop levels for fully automatic operation. The GI LS is the most recent addition, keeping the GI's mechanical control system but using a low-suction body that pumps down to just 1mm in manual mode.

All three share the same 0.47 kW motor, 304 stainless steel motor casing and triple shaft seal. They all flow up to 170 litres per minute against a maximum head of 7.5 metres, and all come with a 10m heavy duty cable and 3-pin domestic plug. What changes between them is how they control the pumping cycle and how low they can draw the water down.

EGO 500 GI, SE LS and GI LS Compared

EGO 500 GI, SE LS and GI LS Compared

Buying guide

More about this category.

The deeper read: what's in this range, how to pick, and when to talk to us before you buy.

Decoding the Model Names

Simaco's model suffixes are Italian in origin and tell you exactly how each pump is configured:

  • GI: Galleggiante Incorporato, or Incorporated Float. The mechanical float switch built into the pump body.
  • SE: Sensori Elettronici, or Electronic Sensors. The adjustable electronic sensor system that replaces the mechanical float.
  • LS: Lowest Suction. The low-suction body design that pumps water down to just 1mm.

So EGO 500 GI is the Incorporated Float model, EGO 500 SE LS is Electronic Sensors with Lowest Suction, and EGO 500 GI LS is Incorporated Float with Lowest Suction.

Simaco have built submersible pumps in Italy for over 45 years, and the EGO 500 is their flagship domestic submersible. The range has evolved in three steps. The GI came first, offering dual manual and automatic operation through a simple lever-set mechanical float. The SE LS followed, replacing the float with adjustable electronic sensors so users could set their own start and stop levels for fully automatic operation. The GI LS is the most recent addition, keeping the GI's mechanical control system but using a low-suction body that pumps down to just 1mm in manual mode.

All three share the same 0.47 kW motor, 304 stainless steel motor casing and triple shaft seal. They all flow up to 170 litres per minute against a maximum head of 7.5 metres, and all come with a 10m heavy duty cable and 3-pin domestic plug. What changes between them is how they control the pumping cycle and how low they can draw the water down.

EGO 500 GI EGO 500 SE LS EGO 500 GI LS
Control type Mechanical float, dual-mode Electronic sensors, automatic only Mechanical float, dual-mode
Manual / Auto Both Automatic only Both
Lowest pumping level 10mm (manual mode) ~1mm (automatic) ~1mm (manual mode)
On level 130mm (fixed) 125mm (adjustable to 15mm) 130mm (fixed)
Off level 70mm (fixed) 40mm (adjustable to 3-5mm) 70mm (fixed)
Free passage 9mm 9mm ~1mm (clean water only)
Supplied with NRV and hosetail Hosetail only NRV and variable hosetail Hosetail only
Outlet 25mm 25mm 25mm
Power 0.47 kW 0.47 kW 0.47 kW
Voltage 230V 230V 230V
Max flow 170 l/min 170 l/min 170 l/min
Max head 7.5m 7.5m 7.5m
Weight 3.6 kg 4.0 kg 3.6 kg
Cable 10m H07RN-F 10m H07RN-F 10m H07RN-F

Which EGO 500 Should I Choose?

Choose the EGO 500 GI if...

You want the affordable workhorse of the range.

The GI gives you dual manual and automatic operation, handles 9mm solids, and pumps down to 10mm in manual mode.

It's a good choice for general flood response, basement and cellar drainage, and any application involving leaves, grit or lightly soiled water.

Choose the EGO 500 SE LS if...

You need fully automatic operation with adjustable start and stop levels.

The SE LS uses electronic sensors instead of a mechanical float, so you can set the on level anywhere from 125mm down to 15mm and the off level down to 3-5mm.

It's the right choice for permanent installations, lift shafts, properties on flood plains, and any situation where the pump needs to draw water down low without anyone there to operate it. Supplied with a non-return valve and variable hosetail as standard. See our step-by-step guide to adjusting the SELS sensors.

This pump has to be setup suitably for its fixed environment in order to prevent dry running or rapid cycling that can cause premature failure.

Choose the EGO 500 GI LS if...

You need to drain to 1mm but only handle clean or very lightly soiled water.

The GI LS uses a low-suction body that pumps down to just 1mm in manual mode, but the same body restricts the free passage to 1mm, so it isn't suitable for water containing grit, leaves or debris.

It's ideal for final drain-down of swimming pools, drying out clean water leaks on tiled and laminate floors, and use internally as a pump for Property Flood Resilience.

About Simaco

Simaco are an Italian pump manufacturer based in Corte Palasio, Lodi, with over 45 years of experience designing and building submersible pumps.

Every EGO 500 is made in Italy, with a 304 stainless steel motor casing, PPS thermoplastic pump body and triple hydraulic shaft seal.

Flood Protection Solutions has supplied Simaco EGO pumps across the UK since 2012.

A Note on the 1mm Free Passage

The 1mm free passage figure can be slightly misleading at first glance, so it's worth explaining what's actually happening:

  • The pump's hydraulics (the impeller and pump body) are identical to the standard GI model and will happily pass solids up to 9mm in size without issue.
  • However, the flat-base suction shroud on this low-suction model sits tight against the floor to enable 1mm pumping, which restricts what can physically enter the pump to around 1mm.
  • In practice this means fine sediment, dust and very small particles pass through without trouble, but larger debris such as leaves, gravel or grit is blocked at the inlet rather than damaging the pump.

For applications involving leaves, grit, mud or any chunky debris, the standard EGO 500 GI with its raised-leg base and 9mm free passage is the right choice.

Spot the Difference: Why the Bases Aren't the Same

Look closely at the bottom of each pump and you'll see the engineering trade-off behind the spec sheet:

  • EGO 500 GI sits on small raised legs, lifting the suction inlet a few millimetres clear of the floor. That gap is what allows 9mm solids such as leaves, grit and light debris to be drawn into the pump.
  • EGO 500 GI LS and SE LS have an almost flat base with no legs, sitting tight against the floor so they can suck the water level down to 1mm. The cost of that low-pumping ability is the loss of solids clearance, which is why the LS body is restricted to 1mm free passage and is recommended for clean water only.

In short, legs equal solids handling, a flat base equals low pumping. You can't have both in the same pump body, which is why Simaco offer the choice across the range.

Common questions

Frequently asked questions.

What's the difference between the EGO 500 GI, SE LS and GI LS?

The GI is the original dual-mode pump with a mechanical float. The SE LS replaces the float with adjustable electronic sensors for fully automatic low-level pumping. The GI LS keeps the GI's mechanical float but adds a low-suction body that pumps down to 1mm in manual mode. All three share the same motor, flow rate and head.

How low can the EGO 500 pump?
  • The GI pumps to 10mm in manual mode.
  • The SEL S draws water down to approximately 1mm in fully automatic operation, with adjustable sensors.
  • The GI LS reaches 1mm in manual mode.

Only the SELS achieves low-level pumping without manual intervention, making it the best choice for unattended installations.

Can the EGO 500 GI run as a manual pump?

Yes. The GI is dual control and has a switch for either manual or automatic mode. In manual mode the float is bypassed and the pump runs continuously while powered, allowing it to draw water down to 10mm. In automatic mode it starts at 130mm and stops at 70mm.

Where are EGO pumps made?

Every EGO 500 puddle pump is manufactured in Italy by Simaco at their Corte Palasio facility in Lodi. Simaco have over 45 years of experience producing submersible pumps for domestic, industrial and agricultural use, with the EGO range as their flagship domestic submersible.

What size solids can the EGO 500 handle?

The GI has a 9mm free passage, so it can handle leaves, fine grit and lightly soiled water.

The SE LS and GI LS has a restricted 1mm free passage as a trade-off for its 1mm low-suction capability.