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14 June 2023

3 Things to Consider When Buying a Dewatering Pump

Things To Consider When Looking To Buy A Dewatering Pump

Dewatering plays an integral role in mining, on construction sites, and anywhere else where water has accumulated. It can be quite daunting finding the right one, as there are so many pumps to choose from.

What are the 3 Key Elements to Consider when Selecting a Dewatering Pump?

There are 3 key elements we usually consider when choosing a dewatering pump. These are pump specifications, pump applications, and if the pump can manage the task. There are, however, other factors to consider when making your selection.

The two main types of dewatering pumps are submersible pumps and non-submersible pumps. We place submersible pumps directly into water. They are perfect for the quick removal of large amounts of water. Non-submersible pumps suit smaller areas or where water levels are not too deep.

There’s a wide variety of dewatering pumps available. Each type has advantages and is suitable for specific applications. Which one fits your individual needs best?

What to Look For When Choosing Dewatering Pumps

There are some key features to consider when choosing a dewatering pump. One of these is inlet size. The primary function of an inlet valve is to draw the water in. Inlet valves vary in size. Larger inlet valves result in faster water movement. Choose your pump and inlet valve accordingly. These depend on how large or small the task is at hand. The size of the inlet valve determines suction hose size. Determine how much, how quickly, and what distance you will need for moving water.

Dewatering Pump Applications

What are you using your dewatering pump for? Is it for construction, municipal use, or for mining? Or is it for something entirely different?

The application will determine the type, and the size of the pump required. Dewatering pumps are versatile. They can tackle a myriad of tasks. They can tackle grey water flooding and are excellent for clearing flooded areas. A good example is excavation sites. Find out how high and how far you need to pump the water. This is your deciding factor.

Another question to ask is if the pumped water contains solid material or not.

Ask these questions:

  • Is the pump easy to maintain? This is an important point to consider.
  • Is your dewatering pump easy to start once it stops running?
  • How reliable is your pump?
  • Does your pump use electricity or diesel?
  • How much will it cost to power the pump once installed? It is prudent to factor running costs and installation into your budget.

1. Can My Dewatering Pump Cope With The Task at Hand?

Factor in the volume of liquids your pump moves per unit of time. Can your dewatering pump cope with the desired flow rate? One way to gauge the capacity of your pump is to measure in gallons per minute or litres per second.

Determine the TDH (Total Dynamic Head) when selecting a dewatering pump. TDH is the total resistance the pump needs to move fluids from source to discharge. You would need to determine horizontal and vertical distances. These applications give the pump sufficient pumping capabilities.

2. The materials I use to make my dewatering pump ensure longevity.

The quality and materials of your dewatering pump play an important role. It’s advisable to assess the quality and materials when choosing a dewatering pump. The best materials are durable and corrosion-resistant. These include stainless steel or cast iron for reliability and longevity. We often use pumps in demanding and harsh environments, therefore, the need for robust materials and solid pump construction.

3. How Easy is it to Maintain My Dewatering Pump?

Find out upfront whether spare parts are easily accessible. Is it easy to service your pump when the need arises? The after sales support from your supplier will play a major role.

4. What Type of Power Source is Available to Power My Pump?

Determining the power source in your location is vital. We power dewatering pumps using diesel, hydraulics, petrol, and electricity. Always choose a pump to align with the power available.

5. Is the Dewatering Pump Portable and Mobile?

A point to consider is whether the location of the pump is static and used in only one location. Will it be necessary to move the pump frequently? Small, lightweight pumps are easier to move than large pumps. Many applications require large pumps in one location.

6. How Safe is My Pump?

A handy feature is low oil shut off. This will alert users to low oil levels, and prevent damaged pump engines.

Other safety features include overload and thermal protection, and grounding. Safety features protect your equipment from damage and prevent accidents. Source pumps with built-in safety features like automatic shut-off and float switches.

7. What to Factor into Your Budget When Investing in a Dewatering Pump

You may need to consider installation and maintenance costs, together with operational costs, once you have purchased your pump.

Find out More About Dewatering Pumps, and Which One is Best for You!

Get to know more about dewatering pumps and which pump fits your needs. Our team of professionals at AxFlow Liquid Transfer is here to assist. Find out everything about dewatering pumps and get the information you need for your unique application. Unpack our full range of world-class brands by contacting us on +27 12 548 7204, or fill out our enquiry form. Let us help you get the best pump for your individual needs.

We are here to show you how to make your operation more energy efficient while reducing your carbon footprint. We show you how to save money long-term by selecting the most energy efficient, robust dewatering pump.

Do you still have questions? Give our AQS Liquid Transfer team a call on +27 12 548 7204 or fill out our enquiry form, our friendly team will get back to you with first-hand expertise on how to select a borehole pump for your needs.

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