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Hippo roller

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[[Image:hippo roller icon.png|right|80px]][[Image:hippo roller.jpg|thumb|right|350px200px|The hippo roller in use at a local water hole. Photo: [http://hipporoller.org/ hipporoller.org]]][[Image:hippo roller 2.jpg|thumb|right|350px200px|The Hippo Water Roller Project is in the process of appointing local manufacturers in other countries where there is sufficient demand for Hippo rollers to justify the setup cost. <br>Photo: [http://www.hipporoller.org/projectabout/about-us hipporoller.orgLink]]][[Image:hippo spaza.jpg|thumb|right|350px200px|The "HIPPO MOBILE SPAZA" utilizes the Hippo Water Roller as a transport vehicle and display facility for products to be sold in rural and informal communities. Photo: [http://hipporoller.org/ hipporoller.org]]][[Image:hippo roller manuf.jpg|thumb|right|350px|This is where the raw material (polyethylene powder) is loaded into each mould__NOTOC__ <small-set (drum & screw cap). Photo: [http:title //hipporoller.org/ hipporoller.org]]]>
The hippo water roller is a barrel-shaped container. It improves access to water by rolling along the ground. It was specifically designed to alleviate the suffering caused by traditional methods of transporting water in buckets.
====Uses====
The Hippo roller's main use is to enable people without water on tap to transport water from distant water sources back to their homes.
====Global and local impact====
The aim of the Hippo Water Roller Project is to reduce the number of people without adequate access to water by 1% = 10 million people. So far rollers have been distributed to 21 African countries as well as India, Mexico and South America.
====Community rollout====
* Sponsorship funding is secured and a recipient community is identified with or without the sponsor.
====Field experiences====* [http://hipporoller.org/communities/southernwater-africablog/hippofilm-rollersshows-tohow-improvewell-efficiencydrilling-forchanged-smallwhole-scale-farmerscommunity-in-zambia.html Hippo rollers to improve efficiency for small scale farmers / Film Shows How Well Drilling Changed Whole Community in Zambia].]* [http://hipporoller.org/communities/southernwater-africablog/item/1441-350-hippo-rollersroller-handedhandover-toby-8his-remotemajesty-communitiesking-ingoodwill-the-eastern-cape.html zwelithini/ 350 Hippo rollers handed to 8 remote communities in the Eastern Cape.] * [http://hipporoller.org/communities/southern-africaevent/lusikisiki-transkei-eastern-cape-sa-nedbank-foundation-november-2011-nedbank-foundation.html / Lusikisiki, Transkei, Eastern Cape, SA - November 2011: Nedbank Foundation.] * [http://hipporoller.org/communities/southernwater-africa/itemblog/1445-mobile-spaza-rollers-introduced-to-informal-traders-in-the-eastern-cape.html / Mobile Spaza rollers introduced to informal traders in the Eastern Cape].]* [http://hipporoller.org/communities/southernwater-africablog/item/1443-100-hippo-rollersroller-forhandover-theby-nkunzanahis-water-project-ofmajesty-king-goodwill-zwelithini.html 100 / Hippo rollers for the Nkunzana Water Project of roller handover by His Majesty King Goodwill Zwelithini].]
===Videos===
{|style====Videos===="font-size: 115%"|-* [http|{{#ev://hipporoller.org/multimedia/videos/green-machines-hippo-roller.html youtube|oVpJ5njVQfw|200|auto|<center>Green Machines: <br>Hippo Roller.] </center>}}* [http|{{#ev://hipporoller.org/multimedia/videos/hippo-tears-video.html youtube|ScBLcqi355U|200|auto|<center>Hippo Tears Video.], from Eastern <br>Cape of South Africa</center>}}* [http|{{#ev:youtube|YO9N0MYXHgc|200|auto|<center>Hippo roller on <br>CNN news<//hipporoller.org/multimedia/videos/cnn-video.html CNN Video.] center>}}* [http|{{#ev://hipporoller.org/multimedia/videos/safmarine-hippo-waterroller-project.html youtube|6eZWN20eiDg|200|auto|<center>Safmarine - Hippo <br>Waterroller Project.] </center>}}* [http|-|{{#ev:youtube|Dyn9y6kDKAI|200|auto|<center>GOOD News: <br>Hippo Rollers<//hipporoller.org/multimedia/videos/good-news-video.html Good News Video.]center>}}* [http|{{#ev://hipporoller.org/multimedia/videos/design-indaba-video.html youtube|isjAb4WnhOo|200|auto|<center>Design Indaba 10 Video.]* [http:- Hippo <br>Roller commercial<//hipporoller.org/multimedia/videos/project-leader-video.html Project Leader Video.]center>}}  ====Local Manufacturing====[[Image|{{#ev:hippo manuf.jpgyoutube|thumbHPCTscerVvI|right200|350pxauto| <center>The Hippo roller manufacturing can be local. Photo: [http:Water <br>Roller Project<//hipporoller.org/ hipporoller.org]]]center>}}|}
===Local Manufacturing===
[[Image:hippo manuf.jpg|thumb|right|200px| Hippo roller manufacturing can be local, using a rotational-moulding process. Photo: [http://hipporoller.org/ hipporoller.org]]]
[[Image:hippo roller manuf.jpg|thumb|right|200px|This is where the raw material (polyethylene powder) is loaded into each mould-set (drum & screw cap). Photo: [http://hipporoller.org/ hipporoller.org]]]
Exporting completed Hippo Water Rollers to other countries where they are needed is expensive, often doubling the cost of a Hippo roller. Limited quantities fit into a container which severely impacts on shipping costs.
Training in the operation and maintenance of the machine is conducted in South Africa.
 
'''Creating a Hippo Roller'''<br>
Stage I -Loading/Unloading station:<br>
* Raw material (polyethylene powder) is loaded into each mould-set (drum & screw cap).
* On completion of the cycle the moulds are opened and the completed mouldings are removed.
* New raw materials are added for the next cycle.
 
Stage II -The Heating station:<br>
* With the moulds inside the oven, the burner fires up and begins to melt the powder inside the moulds.
* During this phase the mould is constantly rotated in a predetermined pattern allowing the molten raw material to flow and take the shape of the mould.
 
Stage III -The Cooling phase:<br>
* While the moulds continue to be rotated they are cooled down by blowing air and spaying water .
* The molten raw material solidifies in the shape of the mould.
 
Finished product:<br>
* The completed mouldings are removed from the mould and any excess material is scraped off.
TO PURCHASE OR LEARN ABOUT LOCAL MANUFACTURING: [http://www.hipporoller.org/ Hipporoller.org]
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