Technology Water pumps

HAND PUMP’S TO BRING A RELIABLE WATER SERVICE IN RURAL AREAS

iganga

 

Hand pumps’ to bring a reliable water service in rural area’s

iganga

pupil’s at Iganga vocational center excited to use their hand pump for the first time

Every day in rural communities and poor urban centers throughout sub-Saharan Africa, hundreds of millions of people suffer from a lack of access to clean, safe water.

Women and girls especially bear the burden of walking miles at a time to gather water from streams and ponds – full of water-borne disease that is making them and their families sick.

It’s amazing how a relatively small investment to get a well and a hand pump can make such a dramatic difference in so many lives.

Hand pumps

A hand pump is manually operated. Its best recommended that one uses a hand pump up to a maximum depth of 50 meters. Beyond that, water is simply too heavy to lift from that depth with a hand pump. We use Afridev hand pumps, because they are locally available and have proven over many years that they are durable and practical. A “rising main” is installed down the plastic casing. This is a much smaller tube, about 1 1/2 inches in diameter. At the bottom of the tubing a valve is installed, which as it moves up and down with the action of the handle on the surface steadily draws water up the tube. This valve is attached by “stems” to the pump body and handle on the surface. Once the pump body has been attached the installation is complete. Water flows.

assembly of a hand pump

assembly of a hand pump

Advantages of hand pumps

  • Require a cover slab which can be sealed to prevent ingress of polluted water
  • Water discharge volumes are better than bucket and rope models
  • Relatively cheap
  • With regular maintenance can have life span of over ten years
  • Efficient and easy to operate

Disadvantages of hand pumps

  • Require trained mechanics to fix
  • May require parts that cannot be sourced locally
  • Moving parts can break down regularly

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