Boreholes & Water Storage

Borehole Drilling and Water Infrastructure Services in Kenya
Borehole drilling and water infrastructure services are important for reliable water supply in Kenya. Many homes, farms, schools, businesses, and industries use boreholes because piped water may not always be available or reliable.
Companies in this industry provide many services. These include groundwater surveys, borehole drilling, water tank construction, pump installation, solar water pumping, water treatment, and borehole maintenance.
Borehole Drilling: From Survey to Completion
Borehole drilling usually starts with a hydrogeological survey. This survey helps identify areas where groundwater is likely to be found. It also reduces the risk of drilling a dry or low-yield borehole.
A qualified hydrogeologist studies available information about the area. This may include geological maps, satellite images, and records of existing boreholes. The expert may also visit the site to study the soil, rocks, vegetation, and other signs that may indicate the presence of groundwater.
Geophysical surveys are also commonly used. One popular method is Vertical Electrical Sounding (VES). This method helps experts understand the underground rock formations and identify possible water-bearing areas.
After the survey, the hydrogeologist prepares a report. The report normally recommends the best drilling location, the expected depth, and the possible groundwater yield. The necessary approvals and permits are then obtained before drilling begins.
Once the permits are ready, the drilling company brings a drilling rig to the site. Depending on the ground conditions, the company may use rotary drilling or a DTH (down-the-hole) drilling rig.
During drilling, the contractor records information about the rocks and soil found underground. The team also records water strikes and other important information.
Boreholes in Kenya can have very different depths depending on the location. Some may be relatively shallow, while others can be several hundred metres deep.
After drilling reaches the required depth, the borehole is developed and equipped. Casing is installed to support the borehole walls. Screens are placed in areas where groundwater enters the borehole. Gravel is also placed around the screens to help reduce the amount of sand and other materials entering the borehole.
A proper seal is then installed to help prevent surface water and pollutants from entering the borehole.
The borehole is finally tested through test pumping. This helps determine how much water the borehole can produce and how the water level behaves during pumping.
Water samples are also collected and sent to an approved laboratory for testing. The tests can check for physical, chemical, and bacterial properties. This is important before the water is used for drinking or other purposes.
Water Tank Construction and Elevated Storage Solutions
Once a borehole has been drilled and equipped, proper water storage is important. Water storage systems help ensure that enough water is available when needed.
Water storage solutions can be designed for homes, farms, schools, businesses, factories, apartments, and other institutions.
Common options include surface water tanks, underground water reservoirs, and elevated water towers. Tanks can be made from materials such as plastic, steel, or fiberglass.
The first step is to determine how much water the customer needs. The location of the tank is also considered. Engineers then design the storage system based on the expected water volume and site conditions.
For elevated water towers, a strong steel structure is built to support the tank. The structure must be able to carry the weight of the tank when it is full of water.
The foundation is also very important. Concrete foundations are normally constructed to provide a strong and stable base for the tower.
After the foundation has been completed, the steel structure is installed. Steel towers may be treated or galvanized to protect them from rust and corrosion.
The water tank is then placed on top of the structure. Pipes are connected to the tank to allow water to enter and leave the system.
A typical water storage system may include:

An inlet pipe from the borehole pump
An outlet pipe to the distribution system
An overflow pipe
A drainage pipe
A vent pipe
Float valves
Gate valves
Non-return valves
Pressure gauges

Before the system is handed over to the customer, the tank should be cleaned and checked for leaks. Water tanks may also be disinfected before they are put into use.
Underground water reservoirs are another option. These are useful where there is not enough space for large surface tanks. They are normally built with reinforced concrete and properly waterproofed.
Water Tower Services: Design, Construction, and Maintenance
Water tower services do not end after construction. Regular inspection and maintenance help keep the structure safe and extend its useful life.
Engineers can inspect towers for rust, loose bolts, cracks, damaged supports, and problems with the foundation. Regular maintenance is especially important in coastal and humid areas where metal structures may corrode faster.
Steel towers may need repainting or additional anti-corrosion treatment from time to time.
Some companies also design and build custom water towers for farms, factories, irrigation projects, apartment developments, and large residential estates.
For customers who want a complete water system, some contractors can handle the entire project. This may include borehole drilling, pump installation, water storage, and pipework.
Having one company handle several parts of the project can make it easier to ensure that the different systems work together properly.
For example, the pump must be powerful enough to move water to the required height. At the same time, the tower must be strong enough to support the tank and withstand local weather conditions.
Water Pumps: Selection, Installation, and Servicing
A water pump is one of the most important parts of a borehole system. It moves water from the borehole to a tank or directly to the point where it is needed.
There are different types of pumps. Submersible pumps are commonly used for deep boreholes. Other types of pumps may be suitable for shallow wells or systems that require high water pressure.
The right pump depends on several factors, including:

Borehole depth
Water level
Borehole yield
Required water flow
Distance the water must travel
Height the water must be lifted
Required water pressure

A professional technician should select the pump based on these factors. Choosing an oversized or undersized pump can lead to poor performance and higher operating costs.
During installation, the pump is lowered into the borehole using a pipe. It is secured properly and connected to the electrical system.
Electrical control equipment is also installed to protect the pump. This may include overload protection and dry-run protection.
The pipe leading from the borehole to the storage tank should also be properly sized. This helps reduce water pressure losses and improves system performance.
After installation, the pump should be tested. Technicians normally check the water flow, pressure, electrical consumption, and general operation.
Regular maintenance is also important. Technicians can inspect the pump, electrical connections, pipes, and other components. If parts such as seals, bearings, or impellers become worn, they may need to be repaired or replaced.
For solar-powered pumps, the solar panels and controller should also be checked regularly.
Solar-Powered Pumping Systems: Sustainable and Cost-Effective
Solar water pumping is becoming increasingly popular in Kenya. The country receives plenty of sunlight, making solar energy a practical option for pumping water.
Solar pumping can be especially useful where electricity is expensive or the national power supply is unreliable.
A typical solar water pumping system includes:

Solar panels
A solar pump controller
A water pump
Mounting structures
Electrical cables
Pipes
Storage tanks
Float switches and other control equipment

The system is designed according to the amount of water required each day. The borehole yield, pumping depth, water demand, and available sunlight are all considered.
The size and number of solar panels depend on the power needed to run the pump. The panels are normally installed on a roof or a ground-mounted structure where they can receive enough sunlight.
The solar controller manages the electricity produced by the panels and sends the appropriate power to the pump.
Most solar pumping systems operate during daylight hours. Instead of storing large amounts of electricity in batteries, many systems pump water into a storage tank during the day. The stored water can then be used later.
This approach can reduce the need for expensive batteries.
Solar pumping can provide major savings over time because it reduces electricity costs and can eliminate the need for diesel generators.
It is particularly useful for farms, schools, homes, and communities in areas where electricity is unavailable or expensive to extend.
Some companies also offer flexible payment options to make solar water pumping systems more affordable.
Associated Water Services
Borehole companies in Kenya often provide services beyond drilling, pumping, and water storage.
These services may include environmental assessments, borehole permits, groundwater mapping, irrigation system installation, water treatment, and water infrastructure development.
Some companies assist customers with the process of obtaining the necessary approvals and permits. Others provide environmental services such as Environmental Impact Assessments and Environmental Audits through qualified professionals.
For farmers, companies may design and install irrigation systems. They may also construct earth dams, check dams, and water ponds.
Water treatment is another important service. Depending on the results of water testing, a borehole may require treatment before the water is suitable for drinking or other uses.
Treatment systems can include filtration, ultraviolet treatment, reverse osmosis, and other methods.
Borehole Maintenance and Rehabilitation
Boreholes require regular maintenance to continue producing water efficiently.
Over time, a borehole may experience reduced water flow, increased sand production, pump problems, or water-quality changes.
Maintenance services may include borehole cleaning, airlifting, jetting, pump repairs, and pump replacement.
In some cases, a borehole can be rehabilitated instead of being abandoned. Rehabilitation may involve cleaning the borehole, replacing damaged equipment, improving the screens, or carrying out additional testing.
Water towers and storage systems also require regular maintenance. This may include repainting, repairing leaks, replacing damaged pipes, tightening loose bolts, and strengthening weak structural components.
Conclusion
Borehole drilling companies in Kenya provide much more than drilling services. Many now offer complete water solutions that include groundwater surveys, drilling, water testing, pumps, storage tanks, water towers, solar pumping systems, irrigation, water treatment, and maintenance.
For a successful borehole project, it is important to work with a qualified and experienced contractor. The contractor should assess the site properly, follow the required approval process, use suitable equipment, test the borehole, and install the right pumping and storage systems.
Whether the project is for a home, farm, school, business, apartment complex, or industrial facility, a well-designed water system can provide a reliable and cost-effective source of water for many years.

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10 Notable Borehole Drilling Services Companies in Kenya

Access to a reliable water supply is essential for homes, farms, schools, businesses, factories, and property developments. In many parts of Kenya, borehole drilling provides a…

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10 Notable Borehole Drilling Services Companies in Kenya

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