Water Pump for Flood Control: The Definitive Guide ( 2019 Update )

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(Last Updated On: March 26, 2019)

flood pump

This is the ultimate guide to water pump for flood control in 2019.

In this comprehensive guide I’ll cover:

  • Why pump is important for flood control?
  • What pump applied for flood control?
  • How to choose the right pump for flood control?
  • Advanced tips
  • Lots more

So if you want to find a perfect pump for flood control, you’ll love this guide.

Let’s get started.

Why pump is important for flood control?

Flooding is said to be the largest natural disasters worldwide by UNISDR.

An estimated 520 million people per year worldwide gets exposed to flood resulting to deaths and other serious damages.

worldmapper.org below shows the floods deaths from 2001 to 2017.

As far as we know, Levees, Dams, Weirs, Dikes and Bypasses are main direct methods to flood control.

levee failure

BUT water pump, as the most widely used auxiliary tools in the flood control, has been playing a very significant role, especially when levees are not working sometimes.

The picture below is from Somerset Levels on Feb 14th, 2014, we can see the pumps start to drain flood water.

When 13 pumps are all up and running, they will move 7.3 million tonnes of water each day from the Somerset Levels.

Flood control is an important issue in the country, with much of its surface area vulnerable to flooding. 

And pumps of flood control, have been connected to a modern operating system.

You could find them at the exit of subway.

subway pump

Also in railway station

railway station pump

Your street under the water

If these areas are full of flood, the cities will suffer economic losses and infrastructure damage. People’s normal life will also be impacted accordingly.

street damage

Therefore, we have to admit that pumps help protect areas by pumping away large volumes of water, thereby preventing the occurrence of flooding.

Many cities and municipalities are located on or near bodies of water, creating a need for large, reliable pumping systems capable of handling large volumes of water. 

Let’s make the answers to “Why pump is important for flood control” simple,

  • Reduce the losses on properties
  • Keep residents in safe
  • Divert water in seconds

What pump applied for flood control?

In this part, we will discuss 4 types of water pumps applied for flood control.

Each type of pump has their particular advantage and disadvantage.

We hope we can get an all-round analysis from as many views as possible.

No 1: Mobile Diesel-Driven Pump

diesel engine pump


It refers to water pumps powered by diesel engine. Always mounted on a skid or with a trailer. Most of pumps are centrifugal type with mature fluid design.


  • Easy to move to the flooded areas
  • No need for electricity
  • Strong fighting capacity in tough situation


  • Diesel is needed when fuel is ran out.
  • Volume is a little big for moving.
  • It takes time to transport and assemble the pipe.


Mobile diesel-driven pump is absolutely winner in terms of flood situation.

Although it has lots of shortcomings, it can stand out at the first time of flooding issue.

They are designed for handling large volumes of water discharge, being able to cope with a wide range of materials.

And fully-automatic self-priming centrifugal pumps were the ideal solution for transporting or raising flooding water with abrasive solids in suspension. 

No 2: Submersible Pump


A submersible pump (or sub pump, electric submersible pump (ESP)) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in the fluid to be pumped.


  • Light and Portable
  • Intensive bottom-suction ability
  • Suitable for underwater situation


  • Impeller must be submerged into the water.
  • Electricity is basic condition


Submersible pump is designed as a tightly contained unit, which is the best solution for narrow space.

When the flood come into your home, submersible pump will be very useful to dry out the flood water.

However, we have to face a cruel fact. If powered off, it will be useless.

No 3: Portable Trash Pump


We define the small portable diesel water pumps as portable trash pump. Gasoline and diesel are used to be the fuel of the pump.


  • Self-priming ability
  • Prompt response to emergency


  • Low Flow and head
  • Fuel consumption


From the point of time efficiency and flexibility, this pump could be a very good choice.

But the biggest problem is its dewatering capacity. It means that we have to deploy a large number of pumps beside the water if sea level is raising very fast.

No 4: Static Pump Station


Pumping stations are facilities including pumps and equipment for pumping fluids from one place to another. They are used for a variety of infrastructure systems, such as the supply of water to canals, the drainage of low-lying land, and the removal of sewage to processing sites. 


  • High efficiency
  • Large dewatering capacity
  • Short time to response
  • Complete dewatering system


  • Low Mobility
  • Depend on the electricity supply
  • Subject to be surroundings


An advanced pump station could definitely deal with varieties of water problems during flooding. However, natural disaster has unpredictable track and power. We cannot force it running as we want.

This is why we have to prepare another back-up solution to emergencies.

How to choose the right pump for flood control?

Now that you have a list of potential flood pumps in-hand, you’re probably wondering:

Which pump should I choose?

The answer? Use this 7-step checklist to identify the best flood pump for your selection.

#1 Make sure of the application

What is being pumped? Storm water or trash water?

Is the water clean or will solids be present?

What is the maximum size of solids that need to be pumped?

What’s the main power supply?

Is the proper voltage available to run the pump?

Do I have a circuit available that can handle the amperage that this pump will draw?

How much fuel (diesel or gasoline) need to be backed up?

#2 Calculate the flow and suction lift

How low do I need to pump down to?

What rate of flow is required for the application (in gallons per minute)?

#3 Get to know the head

What is the total distance from pump to where the water is being discharged?

What is total vertical height the pump is required to lift the water?

#4 Piping system confirmation

Is there existing piping the pump will connect to? If so, what size is it?

How long is the piping?

What’s the material of the pipe? 

Do we need to prepare gasket, nuts and bolts for connection? Or only a quick connection needed?

#5 Control system selection

Do I need the pumps to start/stop automatically based on water level?

What other functions I need? Like alarms or pump data monitoring?

#6 Budget Plan

How much should I spend on pumps for flood control?

How to make best use of the budget?

#7 Personnel arrangement

How many people could be arranged for pump operation and movement?

Do I have vehicles to transport the pumps if needed?

Advanced Tips


Purchasing Tips:

  • Ask the sales questions and make everything clear before you confirm the order.
  • Facing different offers, you should select from them by all-around aspects. Don’t make your decision only based on one factor.
  • Price could be reduced. You probably don’t care about the price of what you buy, but you should try to negotiate with the supplier. Then you will find more useful information.

Maintenance Tips:

  • Pump is same as your private car. To make sure they have their best performance all the way in case of emergency, you’d better check their condition regularly.
  • Prepare some quick-wearing spare parts for flood controlling.

Lots More

Here is a list of goods for flood prevention, you could check it and prepare them ahead of time.

Flood walls

Flood barriers

Flood gates

Airbrick covers

Waterproof brickwork

Pile hammer


Lighting tools

Lifesaving equipment

Life-saving tools

Rescue boat


Pile drawer



Drinking water

Hope you got anything you need for flood control.

If you have any question, please send us email: info@liranpump.com