FAQs

1.) Why use the Pumpmakers DIY Solar Pump and how does it differ from other pump systems?

  • The Pumpmakers DIY Solar Pump is salt water-resistant. While the ground water is slightly salty in some regions, it is perfectly fit for consumption. In these regions, however, a conventional pump system will rust in no time.
  • The Pumpmakers DIY Solar Pump requires no maintenance at all. The high-quality materials used make this possible.
  • The Pumpmakers DIY Solar Pump has an optional hand pump which allows water to be pumped at night.
  • The pump’s solar panels are mounted on the pump tower at a height of 5.5m. Other pump systems require a separate construction for both the pump tower and the solar panels, assuming the panels are to be secured at a specific height.
  • A separate filter pipe, installed in the existing well, prevents the DIY Solar Pump from pumping sand. Especially underwater solar pumps and hand pumps often clog up with sand, causing excessive wear and tear.
  • Pumpmakers supports local partners, companies and organisations in their international marketing activities.
     

2.) What is the maximum flow rate and delivery height?

You will find these details as well as other key data in our Data Sheets.
 

3.) What is the amortisation period for the DIY Solar Pump?

On average, the investment for the DIY Solar Pump is amortised over about one to two years.

EXAMPLE: Generator-driven underwater pump

A generator-driven underwater pump requires about 20 to 30 litres of fuel every day.

We assume a cost of EUR 1 for 1 litre of fuel and a daily consumption of a minimum of 20 litres for our sample calculation:

Time  |  Costs  |  Fuel

Daily:  EUR 20  |  litres 20
Monthly:  EUR 600  |  litres 600
Per Annum:  EUR 7,200  |  litres 7,200

EXAMPLE: Hand pump

Hand pumps can effectively deliver water to a height of about 50 metres. However, this height reduces the flow rate to less than 10 litres of water per minute!

In comparison, the DIY Solar Pump achieves a flow rate that is three to ten times greater for the same delivery height.
 

4.) Can I use the DIY Solar Pump to irrigate a field?

Yes, a drip irrigation system can be connected to the water tank. Using this system, the assumed average amounts of water are:

Daily amount of water |  Approximate field size

20m³  |  4,000m²
15m³  |  3,000m²
10m³  |  2,000m²
  5m³  |  1,000m²

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