Schematic of a rope pump.로프 펌프의 개략도.
Location data위치 데이터
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Location Maastricht, Netherlands

Industrial hand pumps, such as the Indian Mark II, for communal wells donated by development projects often break down after two years.Indian Mark II와 같은 산업용 수동 펌프는 개발 프로젝트에 의해 기증된 공동 유정을 위해 종종 2년 후에 고장난다. If maintenance costs are the responsibility of the users, then this cost is too high when repairs prove necessary and the pump is left nonfunctional.유지 보수 비용이 사용자의 책임인 경우, 수리가 필요한 것으로 판명되어 펌프가 기능하지 않게 되었을 때, 이 비용은 너무 높아집니다.

An alternative reliable hand pump is needed for communal and private use to supply clean drinking water and irrigation.깨끗한 식수와 관개를 공급하기 위해 공용 및 개인 용도로 신뢰할 수 있는 대체 수동 펌프가 필요합니다. These pumps will raise the standard of living if they are low cost, reliable and pump water effectively.이러한 펌프는 저비용, 신뢰성 및 펌핑용수 효율이 높으면 생활수준을 높일 수 있습니다. Efficiency is critical to irrigate a garden in the dry season due to the relatively large amount of water involved.비교적 많은 양의 물이 포함되어 있기 때문에 건조기에 정원에 물을 대는 데 효율이 매우 중요합니다. Such gardens provide food and increased income.그러한 정원은 식량을 제공하고 수입을 증가시킨다.

Local affordability, maintenance and good pump efficiency are required features.현지에서의 경제성, 유지보수 및 양호한 펌프 효율이 필수적입니다. Local affordability means a twenty-to-hundred-fold cost reduction compared to imported industrial goods.현지 경제성은 수입 공산품에 비해 200배에서 200배의 비용 절감을 의미한다. Local maintenance is only possible when made with local resources and skills.로컬 유지보수는 로컬 리소스와 기술을 사용한 경우에만 가능합니다.

The pumping system should prevent contamination of drinking water by permitting the well to be sealed.펌핑 시스템은 유정을 밀봉하여 식수 오염을 방지해야 합니다. This is especially true of communal wells.이것은 특히 공동 우물에 해당된다. Industrial pumps need to be bolted onto a concrete slab positioned over the well.산업용 펌프는 우물 위에 위치한 콘크리트 슬래브에 볼트로 고정해야 합니다. However, this makes the water inaccessible when the pump breaks down.하지만, 이것은 펌프가 고장났을 때 물에 접근할 수 없게 만든다. Immediate maintenance on the pump or access to the well through an emergency hatch permits continuous access to life-giving water.펌프를 즉시 유지보수하거나 비상 해치를 통해 유정에 접근하면 생명을 주는 물에 지속적으로 접근할 수 있습니다.


  • Low cost modern materials as plastic pipe and rope are used in a rotating hand pump system. The rope pump works on the principle of the chain pump with the chain replaced by rope and the rotating chain drum by a specially constructed rubber disk wheel. Such a rubber wheel can be made from used car tires. Other needed materials can be found at little or no cost.
  • Little time is needed to instruct users or craftsman to construct a rope pump. People adapt the basic principle to their own needs, whether shallow or deep wells, whether wells have boreholes, or horizontal pumping from a pond. To achieve quality, instruction should emphasize the importance of the relationship between wheel diameter and the diameter of the plastic pump pipe. Additionally the correct construction of the place where the rope movement changes direction from downwards to upwards in the bottom of the well is crucial.
  • If instructions regarding quality are followed, the rope pump outclasses the traditional pump by far. The Demotech Rope-pump is superior in all aspects of use, as well as price per unit, when compared to other types of hand-pumps.
  • Further development could mean cutting the cost-price per unit in half, making it suitable for 100m holes, quick and efficient maintenance, robust construction and housing, as well as more-efficient propulsion and higher efficiency.
  • The rope pump can be adapted for special situations. To make it suitable for being mounted on a well cover the bearing of the pump axle is positioned at one side of the pump wheel only. In most other set-ups it is preferred to have the bearing on both sides of the pump wheel.


The 'washers' on the rope pump need to be made from a material that is cheap and easily available. They also need to be easily repairable or replaceable. This is necessary when washers crack off or wear over time. Another priority is to have the 'washers' made from a material and in such a way that their construction and repair can and will be done by women. This is because it is usually the women's task to collect water, and so the water pumps will be mainly used by women. The design of the 'washer' should therefore be a design that is 'appropriate for women'. The 'washer' should fit into the pump pipe loosely, it needs to be securely attached to the pump rope and it needs to have a system of construction that is simple and easy to explain and learn.

To make rope elements, one to two meters long and ending in a knot that loosely fits the pipe is an alternative for rubber or plastic washers slid over the pump rope or knots made at intervals in the pump rope. It would be women's work to make such rope elements in a handicraft way like Macramé. When hauling water, women can keep track of the wear of such rope elements and replace one element when necessary. This replacement can be done in a few minutes, there is no need to take the pump out of service. The picture shows a complex piece of macrame work. In a similar way the rope element should be made: thin rope, woven into a sting, a loop at one end and a thick knot at the other end. Each loop can be attached to the knot of the next rope element by inserting it into an opening in the knot. There the loop can be fastened.

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Page data
Type Location
Keywords rope pumps, alternative, pumping, water, offline, how tos, appropriate technology, knots
SDG Sustainable Development GoalSDG06 Clean water and sanitation
Authors Anna Goelnitz
Published 2006
License CC-BY-SA-4.0
Affiliations Demotech
Ported from [see first revision]
Derivatives Pampu ya kamba
Impact Number of views to this page and its redirects. Updated once a month. Views by admins and bots are not counted. Multiple views during the same session are counted as one.2,094

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