Categories: News

The Summer Generator Maintenance Guide

Working in the Summer heat can be truly challenging – just ask anyone in manual labour. Just like grafting in the sun, your Diesel generator faces a whole new set of challenges when the summer sun bears down. How do you combat this? Today, our experts are here to give you the maintenance advice you need to keep your Diesel generator running efficiently all summer long!

1.     Track Those Temperatures

Diesel generators run hot, any hotter, and performance is affected. Most Diesel generators are designed to run at a water temperature of around 80°. Anything above 95° and your Diesel generator are likely to be rapidly deteriorating. If you hit that 95° temperature for your coolant, try reducing the load for a while. If the water temperature hits 95°, you should shut down your Diesel generator to ensure your generator’s safety and the safety of your workers. To avoid hitting these temps, keep a keen eye on your gauges and make sure your Diesel generator is in a cool environment.

2.     Focus on Filters

Summer days are often filled with debris blown in by the breeze. Your diesel generator is equipped with plenty of filters to manage debris, but when the summer months come make sure they’re being checked as regularly as possible. The air filter, oil filter, and fuel filter of your Diesel generator should be regularly cleaned. Make sure this is thorough each time, even the smallest buildup could cause problems and inefficiencies in the future.

3.     Clampdown on Cooling

As aforementioned, ensuring the space your Diesel generator inhibits is as effectively cooled as possible is vital. Alongside this, using an effective coolant and keeping your Diesel generator topped up with it can have a great effect on your temperatures. Tech Africa supplies premium quality coolant you may wish to enquire about.

In regards to keeping your Diesel generator’s environment cool, Employing an AC system in an enclosed area can be a massive help. In a more outdoor area, minimizing sunlight in the area your Diesel generator inhibits whilst keeping it away from hot-running equipment can improve cooling performance.

4.     Optimise your Operations

Heavy loads over extended periods are an easy way to wear out your Diesel generator in any season, especially the summer. The easiest way to keep your Diesel generator in prime condition in the blistering heat is to keep loads as low as possible, without underloading, and give your Diesel generator some cooling downtime. This shouldn’t be an issue for a backup generator, but give this tip some thought if you’re employing a Diesel generator as a primary power solution.


If you’re looking for a Diesel power solution that can power through these warm summer months, trust a bespoke Diesel generator from Tech Africa! As an accredited supplier, we are fully capable of providing an efficient Diesel power solution to meet your needs. Contact our expert Tech Africa team on our 24/7 helpline to learn what we can do for your business.


Categories: News, Updates

Generators are lifesavers. If your power goes out, these reliable machines are always there for us to keep our essential processes functioning. However, problems with rain and other elements can cause some serious problems.

How to Run a Generator in the Rain? To run a generator while it is raining, it must be covered. You can use one of these:

  • Open Steel Sheds
  • Plastic sheds
  • Pop-up canopies
  • Coverings

For most generators, a canopy like this one will do the trick nicely.

You can also build your own enclosure. No matter what, safety precautions should be taken.

Situations will arise where you will need power while it is raining. Read on to find out how to do so safely.

Can a Generator Get Wet?

You should avoid letting a generator gets wet. If one gets wet, it can easily lead to an explosion or electrocution. This could not only hurt somebody nearby, but it could permanently damage your generator and anything around it.

In particular, getting moisture into your outlets is an even worse case. To keep your generator working in good working condition, you will need to protect it from all forms of moisture.

How to Protect a Generator from the Rain.

Sometimes you won’t be able to get away from the rain. The power outage could be because of the rain, or maybe you’re camping, and you need some power in these adverse conditions.


Categories: Updates

How to use a pressure washer: A guide for beginners

Pressure washing is a great way to clean and restore all kinds of surfaces around the exterior of your home. Here’s what you need to know to get started

A pressure washer can help you quickly clean large areas of all kinds of hard outdoor surfaces. You can use a pressure washer to spray off a wooden deck, siding, a car or a concrete surface such as a patio, walkway or driveway. They’re great for when the old “brush and soapy water” routine would take forever. Pressure washing is also useful because it can get rid of some of those hard-to-deal-with soils like grease, tar, gum, wax or even rust.

In this guide I’m going to tell you about the basics of buying a pressure washer, what kinds of jobs a pressure washer is good for and how to apply a pressure washer to various surfaces. I’ll wrap up by talking you through a few examples of a pressure washer in action.

When do I need a pressure washer?

A pressure washer is useful for cleaning any exterior surface that has caked-on dirt, grease, plant residue or other material across a large surface area.

To prevent injury, avoid pressure-washing anything living, whether it’s people, animals or plants. If you’re pressure-washing near plant beds, use garbage bags or other plastic coverings to keep the spray from damaging your plants.

Since pressure washers are mainly used for larger or dirtier jobs, it also doesn’t make a ton of sense to use them on very small areas, unless it’s a stain that you just can’t get rid of. If it takes longer to pull the machine out and set it up than the amount of time you’ll be using it, consider cleaning by hand.

Pressure washers come in two varieties: gas and electric. The price can range from about $100 for a low-end consumer-grade model up to thousands for larger commercial units.

The specs associated with pressure washers are pounds per square inch and gallons per minute. Psi tells you the force of the spray. GPM tells you the volume of water passing through the spray wand.

If you want to save time and backache cleaning off your sidewalk, deck or patio, or maybe you’re looking for an easier way to wash the car, look for a pressure washer with specs under 2,000 psi and 2 GPM. You should be able to find one at your local home store for between $100 and $300.

For more cleaning power — maybe you have some tough stains on your driveway or your deck, or you want to clean the exterior of your house — look for a pressure washer in the range of 2,000 to 3,200 psi and 2 to 3.2 GPM. Most homeowners won’t need a pressure washer with higher specs.

Do I need protective gear to operate a pressure washer?

It’s important to remember that pressure washers are not toys. You will definitely want to wear protective gear and avoid spraying other living things, such as pets, plants or pesky neighbors. For comparison, a standard garden hose probably has a psi of about 60, fire hoses start around 100 psi, and a medium-duty pressure washer can have a maximum pressure of 2,800 psi. Make sure to put on eye protection when you use a pressure washer. Ear protection isn’t a bad idea either for any loud, gas-powered model.

How does a pressure washer work?

The trick to getting such high psi from a normal garden hose connected to your pressure washer is the pump. Each pressure washer, electric or gas, has a pump that pressurizes the water before sending it to the spray wand.

How do you hook up a pressure washer?

The pressure washer itself has one connection for a standard garden hose to bring water to the pump and another connection that connects the pump to a high-pressure hose that has the spray wand on the end of it. Most units have some type of siphon hose for detergents, and any electric pressure washer will have a power cord.

The spray wand of your washer should come with different interchangeable tips that allow you to customize angle of spray for each job. Changing the angle of the spray also changes how hard the water will hit the surface. The sharper the angle, the less direct pressure on whatever surface you intend to spray.

A spray of 0 degrees concentrates the water into one small powerful stream. As you increase the angle, the spray spreads out across a wider area, which decreases the power of the spray at any one point. The greater the angle of the spray tip, the lighter the touch on the surface you want to clean.

There is no exact guide for which tip is most appropriate for which job. The combination of spray angle and the psi rating of your washer will determine the end result. If you’re not sure about the hardiness of the surface you want to spray, start with the sharpest angle tip and work your way up.

Universal color coding should also help you decide which tip to use. Usually, the tips map to the following order, from most dispersed spray angle to the most direct: black (65 degrees), white (40 degrees), green (25 degrees), yellow (15 degrees), red (0 degrees). Still, it’s a good idea to check your manual to determine the best tip for the job for your specific pressure washer.


How long can you run a pressure washer?

Assuming you have correctly set up your pressure washer, there should be no real limit to the amount of time you can run an electric model. If your unit is gas-powered, the tank capacity will be the limiting factor for run time.

What’s the difference between a pressure washer and a power washer?

A pressure washer uses water at ground temperature. A power washer uses a heating element to heat the water before spraying it out. Because of the heat, power washers are more suited to removing stains containing living bacteria, like mold. Most residential washers are pressure washers and not power washers.

Can you damage concrete with a pressure washer?

Absolutely. The main contributor to unwanted surface damage with pressure washers is using the incorrect tip. If you’re unsure, or if you’re using a new pressure washer or washing a new surface for the first time, it’s always best to start with a wide spray tip and switch to a tip with a more direct angle as needed. The white 40-degree tip is a good place to start.

You can use almost any type of liquid soap or detergent with a pressure washer, although there are pressure washer-specific detergents for jobs of all types. Your pressure washer will have a siphon hose or basin of some type, which you fill with the desired soap. Make sure any detergent cutoff valves are on, and then you can run the pressure washer as you normally would.

How do you winterize a pressure washer?

For a gas pressure washer, add a fuel stabilizer following the instructions in your manual. Also, follow the manual for instructions on how to clear any detergent. Finally, run a pressure washer pump saver through your washer by connecting it to the hose inlet. The engine doesn’t need to run during this step, nor does the spray wand or high-pressure hose need to be connected. Once you see the white foam coming from the high-pressure hose connection, you’re done.

For an electric pressure washer, you can omit the fuel stabilizer step.

And there you have it. We breathed some new life into things around the house without too much trouble. Pressure washing can be a great home maintenance tool. Get the right machine from us and be safe!


Check our products here > or call us on +263772156504.


Categories: News

Top 10 Uses of Air Compressors

Air compressors convert normal air into denser and high pressurized air for different uses under three classifications: consumer, professional, and industrial.

  1. Construction
  2. Manufacturing
  3. Agriculture
  4. Engines
  5. Heating, Ventilation and Air Conditioning (HVAC)
  6. Spray Painting
  7. Energy Sector
  8. Pressure Washing
  9. Inflating
  10. Scuba Diving

1. Construction


Construction sites use large air compressors to power drills, hammers, and compactors. Power from compressed air is essential on remote sites without reliable access to electricity, petrol and diesel as compressed air provides uninterrupted power.

2. Manufacturing


Rotary screw equipment ensures that food, beverage, and pharmaceutical manufacturing deliver clean, contaminant-free, and tightly sealed products. Rotary screw equipment can simultaneously power the conveyor belts, sprayers, presses, and packaging.

3. Agriculture


Tractors, sprayers, pumps, and crop conveyors are powered by air compressors to complete the farming and agriculture operations. Dairy farm and greenhouse ventilation machinery also require compressed air that distributes steady and clean air.

4. Engines


Vehicle engines contain air compressors for heating and cooling, as well as in air brakes for larger trucks and trains. Compressed air also runs many theme park rides.

5. Heating, Ventilation and Air Conditioning (HVAC)


Air and heat pump systems of HVAC units usually have rotary screw models built in. Rotary screw models conduct vapour compression refrigeration that entails compressing air vapours, raising the temperature, and modulating the all-important refrigerant cycles.

6. Spray Painting


Small air compressors are used in spray painting by powering airbrushes for personal and commercial use. Airbrushes range from delicate desktop brushes for artists to larger brushes for repainting vehicles.

7. Energy Sector


Oil drilling relies on air compressors for functionality in the energy sector. Safe and dependable air compressed drilling equipment in oil rig operations is imperative to the safety of the crew. Air compressed oil drilling equipment is unique with its spark-free delivery and stable outputs.

8. Pressure Washing

air compressor pressure washing

Compressed air is used to pump high pressured water through pressure cleaners and water blasters for more effective cleaning of concrete floors and brickwork, stain removal, and engine bay degreasing.

9. Inflating


Air compressor pumps can be used to inflate vehicle and bicycle tyres, balloons, air beds, and other inflatables with compressed air.

10. Scuba Diving


Scuba diving is reliant on compressed air with the use of tanks that store pressurized air allowing divers to stay underwater for longer.

Looking to buy an air compressor?

Tech Africa is Southern Africa’s largest supplier and distributor of Quality Domestic Tools, Hardware Tools, Industrial & Agricultural equipment at affordable prices. For air compressor purchases across Zimbabwe, browse through our air compressor categories. Alternatively, call us on +263772156504 or email us at

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