Solar Pressure Pumps & DC Booster Pumps
A solar pressure pump is a surface-mounted DC pump that boosts water pressure using energy from solar panels — often as a direct drop-in replacement for an existing AC pressure pump. Use it to improve tap pressure at home, run irrigation lines, or move high volumes of water without the running costs, inverter startup spikes, or downtime of a conventional mains pump during load shedding.
Our Solar Pressure Pump Range
5.5m³/h Flow Rate
- Model: CPM146-A-800
- Power: 800W / 60 - 450V
- Litres Per Minute: 91 L/min
7.9m³/h Flow Rate
- Model: CPM-158-A-1200
- Power: 1200W / 60 - 450V
- Litres Per Minute: 131 L/min
How Do Solar Pressure Pumps Work?
Solar pressure pumps are surface-mounted DC pumps that connect to photovoltaic panels through an MPPT controller. The controller converts solar energy into the correct voltage to drive the motor, so the pump ramps up smoothly with available sunlight rather than pulling a hard startup surge through your home inverter. Pure DC models run entirely from the sun; hybrid pressure pumps add an AC input so the same unit can switch to mains power when you need pressure after dark.
Why Replace an AC Pressure Pump with Solar?
Most homes and farms already rely on a conventional AC pressure pump on the pipework. Swapping to a solar pressure pump keeps the same job — boosting pressure — while changing how the motor is powered.
Less Electricity, No Inverter Spike
Daytime pumping is powered directly from your panels, cutting grid consumption. Because the motor starts softly through the solar controller, you avoid the sharp inrush current that a typical AC pressure pump places on a backup inverter or generator.
Pressure During Load Shedding
When the grid drops, a solar pressure pump keeps delivering water as long as there is sunlight — or around the clock on a hybrid model. That makes it a practical upgrade for properties tired of weak taps and stalled irrigation every time the power goes out.
A Drop-In AC Pump Replacement
Installation follows the same plumbing layout as your existing AC pump: connect the suction and delivery lines, mount the unit under cover, and wire to solar (and optionally mains on hybrid units). No borehole drilling or new pipe runs are required for a standard pressure upgrade.
Where Solar Pressure Pumps Are Used
Household Water Pressure
Boost weak municipal or tank-fed pressure to showers, geysers, and appliances. A solar booster pump on the line raises flow to every tap without adding to your monthly electricity bill during daylight hours.
Irrigation & Agriculture
Move water from a storage dam or header tank to sprinklers, drippers, or livestock troughs. Size the pump to your required litres per minute and head — our team can help match flow rate to your irrigation layout.
High-Volume Water Transfer
When you need to push large volumes across a property — filling tanks, supplying multiple zones, or feeding a long pipeline — a correctly sized pressure pump delivers consistent flow without running a costly AC motor all day.
Understanding DC & Hybrid Pressure Pumps
What Is a Solar Booster Pump?
A solar booster pump takes water from an existing source — a municipal line, JoJo tank, or surface dam — and increases the pressure to your taps or irrigation. It is the same role as a standard pressure pump, powered by the sun instead of the grid.
Head vs. Suction Limits
Pressure pumps excel at pushing water uphill (the "head" rating), but they are not submersible borehole pumps. The inlet must sit at or above the water source level for reliable priming and efficiency.
DC Pumps vs. Hybrid Pressure Pumps
A pure DC pressure pump runs only from solar panels — ideal for off-grid farms and daytime irrigation. A hybrid pressure pump prioritises free solar energy by day and automatically switches to AC mains at night or in heavy overcast, giving you 24/7 pressure without oversized battery banks.
Using batteries: Running a DC pump from batteries overnight is possible but needs a purpose-built inverter and charge controller setup. For reliable night-time pressure, a hybrid model or a gravity-fed elevated tank is usually the better choice.
Solar Pressure Pumps at Our Branches
Bundu Power stocks solar pressure pumps and DC booster pumps at branches across South Africa. Visit your nearest showroom for sizing advice, stock availability, and installation support:
- Johannesburg — head office and Gauteng dispatch
- Cape Town — Western Cape solar pumps
- Nelspruit — Lowveld and Mpumalanga
- Pietermaritzburg — KwaZulu-Natal
- Bloemfontein — Free State and central SA
Have a sizing question? Read our Solar Pressure Pumps FAQ or request a quote.