PUMPS & SOLAR

Water Pumps, Solar Systems & Generators

Lifting water reliably with the right energy source — electric, solar, or diesel backup.

25yrSolar Panel Lifespan
Electric Pumps

Submersible Borehole Pumps

Submersible pumps are installed below the water surface inside the borehole casing, pushing water upward through a rising main to the surface. They are the most common and reliable pump type for deep boreholes.

We supply and install:

  • 4-inch and 6-inch submersible borehole pumps
  • Single-phase (240V) and three-phase (415V) motors
  • Stainless steel and cast-iron impeller options
  • Brands: Grundfos, Franklin Electric, Lorentz, Pedrollo, Xylem (Lowara), DAB

Pump sizing methodology: Every pump we install is correctly sized — we calculate required flow rate (m³/hr), total dynamic head (TDH), pump efficiency, and motor power requirement. An oversized or undersized pump causes premature failure and wasted energy.

Clapson Aqua submersible borehole pump being lowered into a borehole casing
Clapson Aqua solar water pumping system with PV panels in rural Uganda
Solar Powered

Solar Water Pumping Systems

Solar-powered borehole pumps are rapidly replacing diesel and grid-powered systems across Uganda. They offer unmatched long-term savings and reliability for off-grid locations.

  • Zero fuel costs — once installed, pumping is free (other than minimal maintenance)
  • No grid dependency — operate in off-grid rural locations
  • Low maintenance — no engine, fewer moving parts, no oil changes
  • Long life — quality solar panels last 25+ years; solar pump controllers last 10–15 years
  • Environmental benefits — zero carbon emissions, zero noise pollution

Components of a Solar Pumping System

ComponentDescription
Solar PV panelsGenerate DC electricity from sunlight
Solar pump controller / inverterConverts DC to variable-frequency AC for the pump motor
Submersible pump & motorDC brushless or AC submersible pump
Rising main pipeDelivers water from pump to surface
Storage tankGravity storage buffer for when sun is not shining
Distribution networkPipes delivering water to taps, troughs, or irrigation system

Solar System Sizing Example

A community of 500 people requiring 25 litres/person/day = 12,500 litres/day. With a TDH of 80m and 5.5 peak sun hours in Central Uganda, a typical system would require a 2.2 kW pump with a 4 kWp solar array and a 20,000-litre storage tank. We size every system based on daily water demand, total dynamic head, peak sun hours, and storage autonomy requirements.

Manual Solutions

Hand Pumps

For rural communities without electricity or reliable solar resources, hand pumps remain the most appropriate water lifting technology. We train community pump caretakers and supply spare parts kits.

Clapson Aqua - Afridev Hand Pump

Afridev Hand Pump

The most common hand pump in Uganda, with locally available spare parts. Suitable for boreholes up to 30m water level.

Clapson Aqua - India Mark II / III

India Mark II / III

Heavy-duty hand pump for deep boreholes (up to 45m water level). Extremely robust and widely supported across East Africa.

Clapson Aqua - Bush Pump

Bush Pump

Robust cast-iron pump popular in Southern and Eastern Uganda. Known for durability in high-use community settings.

Clapson Aqua diesel generator backup system for water supply continuity

Diesel & Petrol Generator Backup

For institutions and industries where water supply continuity is critical — hospitals, hotels, factories — we install diesel generator backup systems that automatically start the pump when grid power fails.

Automatic Transfer Switches (ATS) switch seamlessly between grid power and generator power without manual intervention, ensuring zero interruption to water supply.

Water Storage

Overhead & Ground Storage Tanks

Adequate water storage buffers against pump downtime and peak demand. We supply and install a wide range of storage solutions.

  • Plastic tanks (500L to 10,000L) — Polyethylene and polypropylene on galvanised steel or concrete frames
  • Galvanised steel tanks (5,000L to 100,000L)
  • Concrete overhead reservoirs — Cast in-situ for large institutional and community schemes
  • Underground concrete tanks / sump tanks — For water recycling and rainwater harvesting
Clapson Aqua overhead water storage tank on galvanised steel stand
Clapson Aqua pump maintenance and repair service technician

Pump Maintenance & Repair

We offer annual maintenance contracts to keep your pump system running at peak performance and prevent costly breakdowns.

  • Pump extraction, inspection, and refurbishment
  • Motor winding testing and insulation resistance checks
  • Rising main inspection and replacement where needed
  • Solar panel cleaning and output testing
  • Controller diagnostics and firmware updates
  • Water quality testing

Get Your Quote Today

Contact us for a free site assessment and detailed quotation.