Dewatering Pumps

Dewatering Pumps


Hire, Supply, Installation & Servicing

Alton Pump Services offer a range of dewatering pumps. Our professional, reliable team supply, install service and repair dewatering pumps.

Groundwater can cause significant problems when excavating for construction below ground level. Dewatering pumps are often used on construction sites prior to and during the construction process to lower the groundwater level. This type of pump is usally diesel driven. Our range of dewatering pumps are robust in design to meet tough challenges in the construction and mining industries. We also supply and service domestic dewatering pumps for cellars and basements.

At Alton Pump Services, we take pride in our ability to offer whatever kind of dewatering or industrial pump you may need for your specific project. Call our team today on 01420 561661 to discuss your dewatering pump requirements.

What Are Dewatering Pumps Used For

Submersible dewatering pumps are deisgned to move groundwater water from low lying areas in industrial and domestic environments; from construction sites before a building’s foundation is built to water removal from your basement. In most cases dewatering pumps require minimal maintenance. Dewatering pumps use centrifugal force to reduce water levels.

 What to Consider When Choosing A Dewatering Pump

It is important to choose the right dewatering pump for your application. An incorrectly sized pump can cause issues further down the line including broken shafts, dislodged seal or impellers.

Issue to consider are:

  • Distance required to pump
  • Elevation required to pump
  • Materials being pumped

Dewatering pumps have a minimum Net Positive Suction Head (NPSH) requirement to ensure continuous flow, this dependant on the operating duty point – the net positive suction head available should be compared to the net positive suction head required to select a dewatering pump. The NPSH is effected by a number of variants: length of the suction pipeline, pump elevation above sea level, temperature, gravity.

The materials being pump should be identified – pumping clear liquids will require less energy and inflict less wear than pumping slurry.

Due to their portability construction sites will often used electric submersible pumps for dewatering because they are small and lightweight and have a quick setup time.

Which Dewatering Method Should You Choose?


The wellpoint method uses closley spaced wells that are installed around the area. The wellpoints are connected to a headerpipe are often used for pipeline trench excavations. Electric submersible pumps near the base of each well have the combined capacity to lower the groundwater level over a wide area beneath the excavation.

Water collection pipes, power supply generators, electrical controls and monitoring systems are located at surface level.

Sump Pumps

In shallow excavation sites a sump pump is frequently the appropriate dewatering method. Groundwater accumulates in a sump basin or pit via drains or by natural water seepage through the soil. From the pit the water is pumped away; this method is frequently used I for ground water removal in cellars and basements.


Deepwells are bored around the perimeter of the area to be excavated. Using hermetically sealed submersible pumps this method is suited to deep excavations and lower the groundwater level below the excavation area.

If you need assistance choosing the right method or pump for your dewatering project get in touch today on: 01420 561661.

Get in touch

Call us on 01420 561661


Dewatering Pump - HCP Pumps 100AGN25-5-1

Accredited Company

✔ DTI ConstructionLine
✔ UDCB Achillies
✔ ISO 9001 Certification
✔ Alcumus Safe Contractor
✔ Constructiononline

Effective Pumps

At Alton Pump Services we provide reliable, durable dewatering pumps for a variety of purposes. Whether you are pumping wastewater away from building, industrial and factory sites, or from underground sumps, our dewatering pumps offer high performance at competitive prices.

Reliable Waste Water Pumps

Dewatering pumps are ideal for industrial and commercial use. Our skilled engineers work with you to recommend the best pump for your needs, we can provide full turnkey project management and custom-made pump stations to suit your requirements. Call us for industrial waste water management and speak to one of our experienced advisers on: 01420 561661.


To ensure longevity of any pump system it is vital that the appropriate equipment is specified.

Our specialist pump experts can help advise the dewatering pump suitable for your requirements and source the most suitable pump for you.


The Alton Pump Services specialist team will install dewatering pumps for domestic, commercial and industrial premises.

From the simple to the complex, our engineers have the knowledge and experience to provide an efficient and professional installation.


Well maintained pumps can reduce your energy consumption by up to 50%.

We can provide ongoing service contracts to help maintain the efficiency of your dewatering pump giving you priority response, parts and labor.


In the unfortunate event of a dewatering pump breakdown Alton Pump Services can provide emergency pump repair – fast. We stock a wide variety of replacement pump parts and will carry out repairs onsite whenever possible to avoid disruption to your work.

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Pump Repair


Alton Pumps Services Accreditation

Our reputation is built on a foundation of quality products, comprehensive service and a commitment to customer satisfaction. Alton Pump Services is an approved member of the Hampshire Trading Standards ‘Buy with Confidence’ Scheme. We are also registered with UVDB Achilles, the DTI Construction Line Scheme and are an accredited Alcumus Safe Contractor. Because of our membership with these organisations, and our reputation as a reputable pump supplier, you can be assured that all products and services offered are of the highest calibre.

At Alton Pump Services we supply, install and repair the biggest names in grinder pumps, booster pumps, agitator pumps, centrifugal pumps, submersible pumps, dewatering pumps and sump pumps including:

Get in touch today on 01420 561661 for more services