HippoRoller Water Project

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**Hippo Roller**

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[**http://www.hipporoller.org**](http://www.hipporoller.org)  
**Email:   admin@hipporoller.org**   
**Imvubu Projects cc**

**Fax: +27 86 689-9961**  
**Mobile: +27 82 447-1848**

**PO Box 170,  
Fourways, 2055,  
South Africa**

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**What is a Hippo Water Roller ?**

![](roll1.jpg)

Millions of people worldwide are forced to walk long distances
on a daily basis to collect their water requirements for the
day. Traditional methods of collecting water include the use of
20-liter (5-gallon) buckets, which are laboriously carried on
the head. Extensive suffering occurs in the process.

This method is very time and energy consuming and is also the
cause of many serious health problems.

The drum is
manufactured from UV stabilized Polyethylene and has been
designed to withstand typical rural conditions such as uneven
footpaths, rocks and even broken bottles.

The large
opening (135 mm / 5.3 inch diameter) allows for easy filling and
cleaning of the interior. The sealed lid ensures hygienic
storage of water and the steel handle provides firm control over
difficult terrain while pushing or pulling the roller.

The innovative
design allows water to be placed inside the "wheel" rather than
carried above the wheel. The 90kg (200 pound) weight of water is
borne on the ground resulting in an effective weight of just
10kg (22 pounds) on level ground. Children and the elderly can
easily manage a full roller over most types of terrain.
Extensive field tests over many years and various awards have
proven the effectiveness of the Hippo Water Roller.
Approximately five times the normal amount of water can now be
collected in less time with far less effort.

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**CNN
Coverage ( 16 January, 1996 )**
  
 CNN Correspondent: **Mike Hannah**

***'New Invention
Eases the Burden of Rural South Africans'***

CNN World News anchorman introduces the Hippo Water Roller
Project in South Africa.

It (water) is the nations most vital resource, and yet, for
more than 15 million people its not on tap in the home. 
Nearly half the countrys population has to collect
water.   Some walking for up to six hours each day in
doing so, but things are changing.

This is a Hippo water roller, astounding in its
simplicity.  Where people once had to carry small amounts
of water over a long period of time, they are now able to
collect and transport a days supply with ease.

Louis Groenewald - Hippo Water Roller Project: --- The
intention is literally to touch hundreds of thousands of
peoples lives from the very moment they get a Hippo
roller.  Its a case of first world technology in a genuine
third world environment. world technology in a genuine third
world environment.

Its changed this shopkeepers life in the most fundamental of
ways. I used to have to fetch water six or seven times a day,
says Victoria, Now with the Hippo I do it once in every two or
three days.

Ironically, the same engineers who created weapons of war in
the Apartheid years have reinvented the Wheel.

Clara Masinga - Community Leader: --- After the Hippo Rollers,
our lives changed.

For the first time community leader Clara has been able to
grow a viable vegetable garden.  She and her neighbours
have more time to cultivate the crop as well as a means of
irrigating it.   And for those who have literally
spent most of their lives carrying water, there is hope of
better times.

With the financial assistance of others, theres now the real
possibility that a burden carried for so long can be set aside
forever.

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**Distribution**

People in many countries around the world are faced with
similar circumstances with regard to inadequate access to
water.  The vast majority of communities in these regions
are impoverished, requiring donor support.

All Hippo Water Rollers are currently manufactured in South
Africa and the opportunity exists for local distributors to be
appointed in other countries on two levels:

Level 1:  Distribute Hippo Water Rollers in the county of
representation by importing from South Africa

Level 2:  Manufacture and distribute Hippo Water Rollers
in the chosen country of representation

Exporting the manufactured Hippo Water Roller from South Africa
is costly due to the large empty drums filled with air!  A
20-Foot container takes 175 x rollers, and a 40-foot container
takes 350 x rollers. We are also able to provide a complete
manufacturing plant and training for anyone wishing to produce
'Hippo Water Rollers' under license in another country. Once a
license agreement has been established and a plant has been
purchased and installed, raw materials are then imported to the
plant where manufacturing and distribution occurs.

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**Health Benefits**

**How Carrying Water Affects Women's Health**

One of the aims
of the Water Decade was to reduce the social, economic and
health consequences of carrying water by providing a safe water
supply within reasonable walking distance. Many projects have
been developed, but few are concerned specifically with the
health effects of carrying heavy loads of water over long
distances.

Women in many
countries prefer buckets, tins or Jerry cans to traditional
containers such as calabashes and clay pots. The weight of an
empty container varies between 500g and 5 kg (1 and 10 pounds),
depending on the material; plastic is the lightest. The average
quantity of water held in a container ranges between about 12
and 25 liters (3 and 5 gallons). The most common method of
carrying water is on the head, particularly in  Africa.

Women sometimes
carry several containers, increasing the weight of the load to
50-kg (110 pounds). Carrying water on the head requires strength
in the neck and considerable skill, a skill often-acquired
around nine years old.

**General
health effects**

The task of
carrying heavy loads over long distances requires a great deal
of energy, which comes from metabolized food. The longer the
distance and the more difficult the terrain, the greater the
quantity of food needed. Women carrying water are frequently
exposed to malnutrition, anemia and water-related diseases.

Women are most
vulnerable to malnutrition at the end of the dry season when
they have to travel even greater distances to fetch water. Women
and children suffering from malnutrition are also more
susceptible to other diseases.

Some 230 million
people are estimated to be anemic, and pregnant women, in
particular, are at risk. In Africa, 40 per cent of non-pregnant
and 63 per cent of pregnant women are anemic. During pregnancy,
the arduous task of carrying water can cause problems with the
growth of a fetus. Women have to resume fetching water soon
after giving birth, which can affect the quantity and quality of
breast milk, making the baby vulnerable to malnutrition. Women
collecting water from certain environments may be exposed to
water-related diseases such as malaria, fiariasis and
schistosomiasis.

**Effects on
the skeleton**

Carrying heavy
loads over long periods of time can result in damage to the
vertebral column. In normal physiological conditions, the
vertebral column is resistant and can support great strains, but
this changes as people age. A major problem arising from
carrying water is the early aging of the vertebral column. This
may be influenced by several factors, the most important of
which is overwork. A hereditary factor may also exist in certain
families, causing rheumatism.

Problems occur
in the organic tissue: the disc decreases and becomes thinner.
The nucleus becomes fibrous and no longer acts as a shock
absorber. The vertebral bodies become more fragile and tend to
change shape from rectangular to cuneiform. This may lead to a
deformity called cyphosis.

At the same
time, clinical symptoms appear in the form of pain, which
increases with work, at the end of the day and in cold
temperatures. Mobility often becomes limited: on waking up,
considerable stretching is required before normal mobility can
be achieved. As people move less because of pain, so their
movements become more and more restricted until they may reach a
stage where they cannot move at all. Because of modifications in
physiological conditions, the vertebral column can no longer
fulfill its functions.

Where children
are concerned, the main problem associated with carrying heavy
loads of water is the effect on the growth of bones. When
children begin to carry water, they are still growing and a
deformity known as scoliosos of the vertebral column may occur.
Also, because of the development of the neck muscles, they may
have problems with the thyroid gland. Other problems include
fractures, slipped discs and damage to the knees.

Kerr, Charles,
ed., (1990). *Community Health and Sanitation.*   
Intermediate Technology Publications: London

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**Irrigation**

**THE HIPPO FOOD SECURITY SYSTEM**

*incorporating efficient, low-cost and appropriate
technology for improved food security*

![](irrig1.jpg)![](irrig2.jpg)

**Sustainable Food Security**

The Hippo Food Security system is designed to meet the
nutritional needs of an average-sized family.  It is also
suitable for many self-help projects, feeding schemes and other
poverty reduction projects.  All that is required is a
small piece of ground.  The drip irrigation system can be
configured and sized to suit any available area of land (up to
50m2).

**Water Supply?**

Healthy crops require a regular and sustainable water supply
for good quality growth.  In many communities, water
sources are scarce and located far away.  The Hippo Water
Roller is used to bring water to the irrigation system from any
available source with ease, 90 litres at a time.  In
addition the roller can be used to meet normal household needs
too.  Water used for washing (grey water) can be
transferred to the reservoir for irrigating plants.

**Why Drip Irrigation?**

Water is provided slowly to the roots of plants through drip
emitters ensuring a high moisture level in the soil in which
crops can thrive.  Drip irrigation can be adapted to any
farmable slope, suits most types of soil and is most beneficial
when water is scarce.  This method of watering plants is
also very economical and simple to control.

**Responsible Use of Available Water**

Vegetable crops require the right amount of water for good
growth, not necessarily large amounts of water.  Gravity
fed (low pressure) drip irrigation is able to deliver water
directly to the roots through small openings (emitters) in the
drip lines at a very slow rate without losing large amounts to
evaporation or to run-off on steep slopes.

**Improved Health**

Eating a balanced diet from growing a variety of vegetables and
fruit trees empowers communities to get access to good nutrients
for improved health, which has the added benefit of retarding
the effects of HIV/AIDS.

**Income Generation**

The first harvest takes approximately 3 months to mature. 
Thereafter, there will be no need to purchase vegetables, which
will help to reduce household expenses.  Once a family has
become self sufficient, they will have the means to grow and
sell surplus crops, seedlings and flowers for additional income.

**The Hippo Food Security System**

The complete pre-assembled package includes the following:
(other variations are available)   
- A 210-litre plastic reservoir (drum): for supplying water to
the irrigation system.  (this reservoir is optional)   
- A 90-litre Hippo Water Roller: for bringing water to the
irrigation system and for household use.  (The Hippo Water
Roller can also be connected directly to the feeder hose
eliminating the need and cost of the larger 210-litre
reservoir.  A second screw cap with pipe adapter is
required.)   
- Eight x 6-metre length drip lines: will cover an area of 50m2
(These can be expanded or reduced in quantity to suit individual
requirements.)   
- Tools and instructions: for creating drip emitters according
to the required spacing for the different vegetable seeds to be
planted.   
- A starter pack: consisting of a variety of seeds for both
winter and summer sufficient for a family of six.

**Unique Drip Emitters**   
The simple drip emitters were designed using low-cost
appropriate technology to suit third-world conditions. 
They are easily manufactured, maintained and unblocked.   
The spacing of the emitters will be determined by the choice of
seed to be planted in each row.  For example: Onions @
15cm, Spinach @ 30cm, Cabbage @ 45cm, Pumpkins @ 1,5m, etc.

**Pre-Assembly and Packaging**   
The complete system is pre-assembled before packaging.   
The Hippo Water Roller and handle are placed inside the large
reservoir.   
The individual drip lines are then rolled up and placed inside
the reservoir on top of the roller.   
The tools, instructions and starter pack are also placed within
the reservoir, which is then sealed, ready for shipping.   
Once delivered, the system is quickly unpacked, laid-out and
emitters inserted.   
After the reservoir (or Hippo Water Roller) has been elevated
and filled with water, the Hippo Drip Irrigation system is
ready.

![](irrig3.jpg)

**Further Options:**   
Additional supply of gardening equipment and seed.   
Start-up, implementation and subsequent training and consultancy
on the control and operation of drip irrigation for growing
vegetables.  (Transfer of Life-Skills).

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**Landmines**

Many countries throughout Africa and other parts of the world
are devastated by the impact of land mines. The cost in terms of
human suffering and resultant dependency on the state by the
maimed is crippling and extremely de-motivating.

Tests were conducted near Pretoria, South Africa using Hippo
Water Rollers to establish what the impact might be on a person
should the roller trigger an anti-personnel land mine.

A hippo Water Roller filled with 90 liters (20 gallons) of
water was pulled over a land mine that had been planted in front
of a soft cardboard model mounted on a steel frame.

The shock wave and incredible heat (3,000oC)
generated by the blast were absorbed so effectively by the water
that not even a yellow flame was noticeable. Very little damage
was evident on the cardboard model.

In all three tests, indications were that no hospitalization
would be required. Some bruising and lacerations may occur
caused by bits of plastic from the roller.

Though not recommended as a de-mining device, the Hippo Water
Roller will save both life and limb and at the same time
alleviate the need for improved access to water.

![](mine.jpg)

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