Demotech, design for self reliance

Water & Sanitation
<< Back to category overview

Bathroom with toilet Bathroom with toilet Private sanitation for every family in a village, constructed during one single communal project, increases comfort, decreases child mortality
BathroomBox BathroomBox A clean, comforatable, compact box shaped toilet facility, separating urine and feaces for recycling on behalf of urban farming, meant for densely populated areas.
ClothPump ClothPump Pump little filthy (gray) water up from a container to filter down a growth bed for plants. A cloth strip runs in a closed loop, soaking up water and filth. that is squeezed out at the top.
Concrete Hydram Concrete Hydram Industrial production of the hydram is replaced by DIY instruction set using a bag of cement, bits of wood and scrap rubber, still attaining good water lifting performance.
Cover to better the use of a well Cover to better the use of a well A heavy concrete ring is placed on top of a well. The open center can be closed and locked. Buds on the ring offer support for a pulley, rope guide or pump.
IrrigationTripod IrrigationTripod Irrigation from an open well of more then 5 meters depth is less hard work in an energometric sound working position in a DIY-frame made from 2 m. long sticks.
Knots for Rope Pump Knots for Rope Pump Enable women by use of traditional knotting as construction method of the pushers on the rope, that fit loosely in the pump pipe.
Plastic Strip Drip Irrigation Plastic Strip Drip Irrigation Water transport through tubes from strips of plastic sheets to replace PE pipe and for loss of pressure over a certain length due to resistance by small diameters.
Pulley Pulley A pulley to ease irrigation of one's garden, its manufacture and sale is part of the local rural economy. It should be light weight, smoothly running and easy to repair.
RopePump RopePump Locally made, reliable, effective and affordable water pump also from deeper wells. For private or communal use, for irrigation and for drive by hand, wind or motor.
Shallow tube well Shallow tube well Access to ground water (the aquifer) with a shallow tube well, but without investment in tools. The lining can act as filter.
Water Bag Water Bag Gain knowledge in detail of the why and how of water lifting when using a bag. Develop means to adjust existing methods to new demands.
Water Emergency Control Water Emergency Control Aids and approaches that relate to regular recurring floods: to safeguard people, small husbandery and personal belongings and to assure access to clean water
WeaverSeat WeaverSeat A seat for weaving women, used for weaving with a back strap, offers the right ergonomic position, prevents knee and back strain. Made from bits of fuel wood and scrap sheet metals.

Search for

On this page you can find all the designs in the respective category. When you click or rest on an icon you will get an explanation of its meaning. You can sort the designs on the following variables; Progress
  • Factor cost reduction
  • For rich or poor countries
  • Prime target of design
  • Secondary target of design
  • Where to apply
  • Translate