370 Kruger Road
Strijdom Park, Randburg.
Tel: +27(11) 792 9550 / 1 / 2


  • Sewage Pumps
  • Zuwa Pumps

The Benefits of Submersible Drainage Systems


The Benefits Of Electric Motor Rewinding

What Are Electric Motors?

Electric motor rewinding helps in allowing your motor to be used more than once if the wires were to break.

If you decided not to use rewinding, you will have to replace your electric motor, which is not only a waste of time but also a waste of money.

The electric motor rewinding service ensures that you are able to continue to use your motors for an extended period of time, allowing you to focus on other parts of your business.

Although it is a service which has been around for a number of years, there are still some sectors in industries that are not sure about what electric motor rewinding is, as well as the benefits of it.

By converting electrical energy into power which will allow machines and items to function.

Electric motors in themselves are very important as they are vital for our business and private lives.

Fridges, air conditioners, hard drives, automatic car windows, are just a few of the ways in which electric motors are used.

Without them, our modern world and modern living would not be where it is today. On top of this, industrial sectors need electric motors in order to produce items and facilitate their production.

Electric motor rewinding is as important as it is a quick and complete fix of electric motors which allows machines to function again, decreasing downtime.

If you think about any item around you, the chances that an electric motor was used in the production process is highly likely.

As time has gone on, electric motors, as well as electric motor rewinding, has improved, making it a lot faster and more efficient.

This has allowed industries, including the manufacturing industry, to work at a much quicker rate, while making products at a better quality.

Without electrical motors, manufacturing businesses would still be producing low quantity, and it has to be said, lower quality, products.

Cost, time and output are all advantages of the electric motor. This is why electric motor rewinding has become such a needed and sought after service.

Business is, and should, always be looking for ways to keep downtime at a minimum, as the more time you have to produce, the more you will be able to produce.

Another feature of electric motors is that the power supply that can be used in order to supply energy to the motor is varied, meaning that almost any power supply can be used, for almost every kind of electric motor.

Electric motor rewinding keeps the entire workflow at a high level, as it doesn’t take up time, compared to if you were to go out and buy a completely new electric motor.

If this has still not convinced you about why electric motors, as well as electric motor rewinding, is so important, a list of the key benefits of electric motor rewinding will.



The Effectiveness Of Electric Motor Rewinding

Buying an energy-efficient electric motor will ensure that you are not using a motor which will be hiking up the prices. On top of this these types of motors give off a better output as well.

By lowering the prices in this aspect, you will have more money in order to use electric motor rewinding, which will again save you money and time.

Electric motor rewinding is done when an electric motor breaks, making it easier to fix, decreasing downtime and ensuring that your electric motor can be reused.

If you are looking for a business who does electric motor rewinding, contact Ernest Electro.

Checking For Core Damage

You will know that you are working with a reliable and efficient electric motor rewinding business if the first thing they do is check to see if the stator core is damaged or not.

The reason for this is that there is some damage which may require you to replace your electric motor.

If an electric motor rewinding business highlights this, their goal is to ensure your business is working at a high level, rather than it being to simply make money out of you.

If the damage is not as catastrophic, electric motor rewinding can be done, fixing the problem and increasing the lifespan of your electric motor.

Time Efficiency

As mentioned above, electric motor rewinding is a fairly quick fix, where your downtime will be low, compared to if you have to go out and buy a brand new electric motor.

in as short a time as a day, your electric motor will be fixed, allowing for your business to continue running.

Even if you can afford to wait a couple of weeks for a replacement electric motor to arrive, the idea that you would rather wait than have your own electric motor fixed doesn’t make sense.

Electric motor rewinding is a good option for businesses small and large, allowing you to focus on other business duties, rather than trying to find a good supplier of electric motors.

Specialised Motors

Businesses may require specially designed motors which are not easily found, in fact, they are more often than not custom made to fit your business’s needs.

These motors will have to be repaired as you will most likely not be able to replace them, or replacing them will cost a lot of money.

In this case, electric motor rewinding is not only the only option but the best option as you will not be pulling out wads of cash in order to replace your custom electric motor.

In some cases, there have even been improvements made to the electric motor when electric motor rewinding is done as other motor specifications, such as temperature resistance, may be able to be improved, increasing the lifespan of the motor.

Choosing an energy-efficient electric motor will also help in this, as they are designed to run for days on end, where normal electric motors are designed more for short usage.

Energy-efficient electric motors are also way more cost-efficient as it uses less energy, meaning that your expenditure will be decreased, while your output is increased.

Submersible Pumps

Where Ernest Electro provides an electric motor rewinding service, they also offer products such as submersible pumps, which require an electric motor in order to function.

As a business which uses submersible pumps, having an electric motor which all of a sudden stops working, makes your job a lot harder.

Submersible pumps can be used in a multitude of ways, including as water pumps as well as for sewage requirements.

With a strong enough electric motor, submersible pumps will be able to remove any waste or water in a fairly short amount of time, with the risk of electrical shock being almost zero.

The reason for this is that these pumps are made to be put into a place where there is a large amount of water or liquid.

Having said this, there are a number of benefits to using a submersible pump, especially if you are a business that deals with the extraction of water or other types of liquids.


A major plus of choosing to use an electric motor powered submersible pump is that it they are usually quite small, compact and easy to move around.

Using submersible pumps for your business means that you will be able to get into every area where liquid needs to be removed.

On top of this, electrical motor rewinding is easy to do, where an electric motor can be fixed in a short amount of time.

If you are looking for a submersible pump, as well as a business who is able to repair your electric motors, contact Ernest Electro for more information.

Ready To Use

Submersible pumps are designed to be used and submerged in water, making it ready to use, with there being no need to install certain products on or in the device, in order to ensure it can be used in liquid.

Purchasing a submersible pump over a regular pump will save you time and money and will also ensure that the electric motor will not need electric motor rewinding as often as it would for another pump.

Submersible pumps can be used right away, where other pumps which have been primed to use in liquid may need to be primed again before each use.


Another benefit of using submersible pumps is that they require less energy from the electric motor, not needing as much for the suction of waste or water, using the energy more on the moving of the items through the outlet.

This actually helps in terms of not overworking an electric motor, decreasing the chance of you needing electric motor rewinding as often as if you were to use another type of pump.

The submersible pump actually helps in improving the lifespan of both the pump itself, as well as the electric motor which is being used.

This means that replacing both will be much less frequent than if you use another pump.

Additional Use

On top of the fact that submersible pumps are made to be used in water or liquids, there is another use for these pumps which helps businesses cut costs.

If you are using a pressure pump, which needs water in order to function, you will be able to use a submersible pump in order to retrieve water from a lake or well.

This decreases the costs you could pay if you have to find a source of water in another way.

Submersible pumps will ensure that you are getting the right supply of water in an efficient way, in the shortest amount of time possible.

Corrosion Resistant

Choosing to use another type of pump with liquid extraction could leave you in a position of having to replace it time after time as the corrosion for the metal will decrease its functionality.

Submersible pumps are designed with specific materials in order for it not to corrode, ensuring that the lifespan of the pump is kept at a high.

With the right sealants used, submersible pumps will last a long time, helping you to focus your efforts on other parts of your business as opposed to having to go and buy a new pump every so often.

If you are looking for high-quality submersible pumps, Ernest Electro is able to provide you with them, as well as with other types of pumps for your business needs.


Submersible pumps come in a wide range of different types, meaning that you will be able to purchase such pumps for your specific needs, rather than buying a pump which has features you don’t need.

As mentioned above, there are submersible pumps made in order to remove sewage. If your business is in the sewage removal sector, it would be best to buy this pump.

If you do not need a pump which has to be fully submerged in water, there are pumps which can be half submerged.

Depending on your needs, you can choose which types of pumps you need, as well as what size of pump you need.

Power Supply

Submersible pumps require electricity in order to function, where an electric motor will be used in order to supply the device with power.

As mentioned above, electric motors are able to be used in such a way where a lower amount of energy is needed, meaning that the pump and motor will last much longer.

Electric motor rewinding will also ensure that your electric motor can be used and reused, rather than replaced.

Contact Ernest Electro For More Information

If you are looking to ensure that your business sector, be it in the oil rig, fishery or agriculture sectors, to name a few, is running at the most optimum level, then contact Ernest Electro here, Ernest Electro for more information.

For 45 years this company has supplied the best borehole and sewage pumps to mining, agriculture, hospitals, fish hatcheries, offshore oil rigs, schools, sport and recreation facilities and tourism.  We assist in providing rural communities with safe, drinkable water to prevent typhoid fever, cholera, and diarrhea, by installing a community pump with tap and appropriate facilities.


Current Industries Utilizing our Pumps

The saltwater resistant pumps for desalination plants provide water for agriculture and drinking.

Sewage pumps are the solution to preventing pollution in rivers, dams and streams.

Our multicrusher is installed in pumps or stand alone and is used in the mining industry, chemical and oil industry, Building, ceramic, meat and fish, marine and sugar industries.

The Zuwa Pumps and flat suction system assists with broken pipe leakages, removing water remains from swimming pools and any flooded areas to an almost dry state and contains an oil suction kit with oil resistant hose especially for flooded basements with damaged fuel tanks.

Suction mats with flow channels on the underside, are ideal for drying small amounts of water on large, uneven surfaces.

We also supply a variety of submersible motors and pumps which are ideally suited for sewage and waste disposal in mining by means of a small bore pipe over long distances, rejecting any materials it is unable to cut.

Other Services we can offer you

Our factory specialises in rewiring electrical motors, motor repairs and armature rewinding from fractional up to 300 H.P.  We stock spare parts and quick mounting aluminium gantries for moving and lifting heavy loads, repairs and maintenance of pumps, on and off loading trucks and trailers and general use in workshops. Ernest Electro Engineering offers after sales service so call on us in Strijdom Park, Randburg to discuss your pump requirements.

Sewage pumps offer an excellent alternative to traditional gravity sewage systems, in fact they are necessary for certain applications, particularly where waste needs to move upward from a septic tank. However, when used in any household, they can have a number of unique advantages when compared to traditional systems.

Consistent Flow of Waste

Because they are not reliant on gravity, sewage pumps offer a more consistent and even flow of waste. It is important that this flow is consistent when travelling to the tank as irregular flow could easily lead to blockages or drops in pressure that make the system ineffective.

Efficient & Effective

With the ability to move well over 700 litres of water-waste a minute, sewage pumps provide much more effective and efficient means of waste-removal than more traditional systems. This is a big deal for blockages, since large quantities moving at a slow rate can significantly reduce the efficiency of the septic tank in your home.

Waste can Travel Against Gravity

In traditional systems, waste needs to travel with the assistance of gravity. While there is nothing intrinsically wrong with this, it does mean that a gravity-based system will have to flow downward to effectively allow waste to travel to its destination.

This will obviously have a significant impact on the way that the system is designed.

Sewage pumps on the other hand do not need to take gravity into account, allowing waste to flow from any direction.

Contact Ernest Electro Engineering for Details

Are you looking to acquire and install a sewage pump in Johannesburg? Be sure to get hold of a representative from Ernest Electro Engineering today, or visit our website for further details on our offers.

Submersible pumps, also called ESPs (electric submersible pumps, as they are connected to an electric motor) are used both at home, as a water pressure booster system, and industrially for drainage, sewage pumping and seawater handling, to name but a few uses.

How does it work?

The submersible water pump pushes liquid to the surface – as opposed to a centrifugal water pump which pulls liquids before pushing. As soon as the pressure switch is turned on, an impeller will start to spin, which is what draws water into the pump. Because it is designed to work under the earth’s surface (similar to a sump pump), it will not function unless it is submerged in liquid. This pump is also an energy saver – it creates pressure about 30% faster than other pumps and does not work against gravity.

What are the benefits?
One major advantage of using a submersible water pump, is that it never needs to be primed, as the pump is already submerged in liquid. Another benefit is that the pump itself prevents cavitation, a problem that often occurs when there is a high elevation difference between the pump and fluid surface. Additionally, submersible pumps are quieter (especially useful in a residential setting), convenient because it is lightweight and portable, more efficient, safe (as potentially dangerous components are submerged) and it takes much less prep work than other pumps.

Where is it used?
The most common application for a submersible pump, is in construction sites, to pump excess water or fluids from areas like basements. Other uses include pumping slurries, inland or offshore oil wells, boreholes and even in irrigation systems.

How long will the pump last?
Submersible pumps can last up to ten years, but there have been cases of residential submersible pumps that last up to fifteen years, if they only accommodate moderate water usage.

Ernest Electro Engineering is a specialist in rewiring of electrical motors from fractional up to 300 H.P. and is well known for their Oddesse and Submersible motors and electric water pumps.



Ernest Electro Engineering provides all your pumping needs and we are confident to service whatever we sell!
Visit our website: or call +27(11) 792 9550

There are many different pumps to choose from each with its own benefits and capabilities. Pumps are used in many different industries and domestically for a variety of different projects.


Ease of Use

Not only is Zuwa pumps simple to install and use it quite cost effective. Zuwa pumps have been in the industry for over 7 decades making them a very reliable option for any project that requires the use of a pump. The Zuwa brand is constantly working at improving their product so that it is always leading the industry.


Zuwa Pump Uses

Zuwa Pumps and flat suction systems are a great way to get rid of water in most flooding scenarios. Typically used for flooded basements, garages, homes and platform roofs. These places might flood due to heavy rains or broken and leaking pipes. Zuwa Pumps can even be used to empty residue from swimming pools and will empty flooded areas to a near dry state.


Suction Mats

Suction mats are used for clearing fluids after an area has been pumped or for stubborn low-level fluids. The suction mat will remove fluids from all areas in direct contact of the suction mat. The mats are slightly flexible so use on uneven surfaces like concreted basements can be very effective. Mats can even be connected to each other to increase the area covered.


Versatility and Strength

Zuwa pumps are not only limited to water, the pumps can be used to pump out a variety of different liquids including oil, diesel and heating oil to name a few. Zuwa pumps are quite powerful and can pump out small debris like soil or solid articles from areas such as basements with concrete flooring.


Ernest Electro has a variety of different Zuwa Pumps to choose from each with their own accessories to add on.

Visit Ernest Electro to get your Zuwa Pump Now

Click on the link below to see all of our Zuwa Pumps Available

A borehole(also known as a tube well)is as a structure used to expose water that is hidden in the interstices or in the cracks of a rock embedded in the sub-soil that is also called the aquifer.

The water can be raised to ground level either by using a simple receptable (eg. Bucket) or a motor driven pump.

Boreholes that are manually dug are one of the oldest sources of water amongst the poorest communities.

In days of old , the boreholes were simply holes dug with absolutely no form of protection against collapsing.

Their inability to withstand harsh weather conditions led to them disappearing over the years. Of course then they constantly had to dig new boreholes because the ones they had previously dug had either collapsed or dried up quickly.


Boreholes remain one of the most effective and reliable sources of water among the poorest communities. Having to travel long distances to get access to water is a struggle many still have to face.

Even though there are rivers in most poor communities, the water from these rivers are not fit for human consumption. These rivers are where people bath, do laundry and for some these same rivers are lavatories.

Thus making it a breeding ground for multiple illnesses. The borehole system however, requires the, to either use a pump or a pulley system to bring the water up to ground level thus reducing but not completely eradicating the levels of contamination.

Manually dug holes are still subject to contamination by humans because they usually only go up to 20m below ground which is very shallow.

Now given the fact that boreholes are used primarily in the poorest communities, these people do not have access to mechanical means of digging the boreholes.

It is only fair to say that drilling and driven techniques need to be enforced around affected areas. It would be a small price to pay so that all people, no matter their social standing, have access to clean and fresh water.

“Water is Life, Sanitation is Dignity” -Johannesburg Water

Contact Ernest Electro Engineering for Details

Looking for the right electric water pumps for your borehole? Contact a representative from Ernest Electro Engineering today, or visit our website for details.



Pump systems and AC Motors need to be controlled and monitored, the AC Diggi Controller does just that, monitoring and controlling the electric load to ensure that the system is not overloaded. The Ac Diggi Controller comes with open source software for users to set up the AC Diggi Controller to their own custom specifications needed for the project.

Monitoring Pumps

LED lights display warning signals and failures are displayed on the device screen. These faults and failures are stored on the devices on board memory and can be transferred to a computer for further study so future adjustments can be made to prevent these errors.


Bringing You Into the Future

Gone are the days of analogue controllers, AC Diggi Controllers are much more detailed and accurate in its readings and you have the data available in seconds. You even have all of the data available on your mobile device ready to be analyzed.


Pump Protection

Using the AC Diggi Controller protects your pump motor from extreme voltages either too low or too high, phase failures or your motor overheating due to overloading. The controller will also prevent your motor from dry running, if your motor runs dry (without a medium) your motor is at risk of serious damage.


What Exactly is Controlled

The controller monitors a variety of different inputs.

  • Temperature is monitored to make sure the pump is running at optimal performance.
  • Power Factor (Cosφ)
  • Current/Phases
  • A 3 phase voltage input for monitoring and gauging the power supply.

The Unit Itself

What would the point of a monitoring unit be if it did not alert you if an adverse reading is found? The AC Diggi Controller displays real time current, power and voltage values. Displaying various alerts for system failures.



Get in touch with Ernest Electro Engineering to get your AC Diggi Controller now!

Go to our website to view all of our pumping solutions

Ernest Electro

A Dry Faucet

No water making its way to the taps could mean that there is no power coming to the pump.


Air in the pump results in aerated water. This could be caused by a cracked pipe, poor submersion or a faulty valve.

Dirty Water

Dirty yields could be the result of sediment in the pump, which if left too long, will eventually cause a breakdown in its internal parts.

Increased Power consumption

When pumps become faulty they need to overcompensate, which takes up a lot more electricity. This results in higher power costs for you.

Contact Ernest Electro for Repairs

For repairs and replacements of submersible pumps, be sure to contact a representative from Ernest Electro today.