Difference between revisions of "Modaso"
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| − | [[Image:Modaso.jpg|thumb|left| [https://www.google.com/maps/place/6%C2% | + | [[Image:Modaso.jpg|thumb|left| [https://www.google.com/maps/place/6%C2%B007'26.9%22N+2%C2%B009'41.8%22W/@6.137413,-2.160353,6495m/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d6.1241389!4d-2.1616111?hl=en Modaso drilling location in GoogleMaps]]] |
[[Image:02-School.jpg|thumb|right| The primary school in Modaso]] | [[Image:02-School.jpg|thumb|right| The primary school in Modaso]] | ||
[[Image:EcoSanGhana.jpg|thumb|left| ]] | [[Image:EcoSanGhana.jpg|thumb|left| ]] | ||
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| − | [http://www.waiwiki.org/index.php/EcoSan_Ghana EcoSan Ghana] drilled for water [https://www.google.com/maps/place/6%C2% | + | [http://www.waiwiki.org/index.php/EcoSan_Ghana EcoSan Ghana] drilled for water [https://www.google.com/maps/place/6%C2%B007'26.9%22N+2%C2%B009'41.8%22W/@6.137413,-2.160353,6495m/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d6.1241389!4d-2.1616111?hl=en in front of a primary school in Modaso] (Diaso), Ghana, using a FloFlo drill tower (percussion drilling). See [https://youtu.be/PH8mr9j1CUg YouTube video]. The dry-composting toilet will be at the back of that same school. |
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Revision as of 15:56, 14 November 2016
EcoSan Ghana drilled for water in front of a primary school in Modaso (Diaso), Ghana, using a FloFlo drill tower (percussion drilling). See YouTube video. The dry-composting toilet will be at the back of that same school.
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The FloFlo
The FloFlo is an ancient drilling tool, modernised by dutchman Floris de Vos in 2011 (see Facebook page) The FloFlo employs a hoist using a three legged tower. The drillbit is repeatedly hoisted and released to pulvarise the hard soil as it hits the ground. Once a substantial amount of soil has been pulvarised, the drillbit is replaced by the bailer, equiped with a valve, to pull out the soil. Thus it is a manpowered drill tool. Anyone can do it, and it is cheap and efficient.
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The First Phase
Drilling started on August 16, 2016. Then on August 19 the kit holder got loose, which was fixed on august 20. On august 22 the drilling resumed. On September 2, the queen Nana Adjei Maanu and the odikro (elder of the village) stopped by for some encouraging words. That very same day, after 13 days of drilling, water was found, at 50 feet depth. Two more days of drilling in the water got us to 54 feet deep.
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The Second Phase
In the second phase, the pipes and the pump need to be installed. When two different contractors from nearby towns were asked for an estimate, they however charged us too much money (€4100 and €1900 respectively, not even including a polytank), so that we first need to buy the needed materials ourselves. We promised the queen that we would definitely return to finish our work there. For now we covered up the hole for safety reasons and packed our gear.
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The Costs
It took 15 days of drilling. Each person (Akwasi Adea, Kojo Amoah, Dominic Asante, George Asante, Yaw Fosu) was paid 50 cedi per day. So, 5 x 50 x 13 = 3750 cedi in total (which was about 740 euro at the time). Plus 50 cedi for fixing the bit holder. Plus transportation costs for the project manager and the floflo; 190 cedi. 10 cedi for a torchlight. 80 cedi for caution tape. Plus 150 cedi in total for the water used in the drill hole. 50 cedi for gloves. total costs: 4280 cedi (€972). We will also need a submersible solar powered waterpump.
For the second phase, we need casing pipes. We bought 100 meters of casing pipe in China; total costs including shipment and bank transfer fee: €1172. We need to wait to know the local (from Tema port to location) transport costs, after which we can calculate the total costs per meter (€11.72/m so far). Besides the casing pipes (about €250), we will also need to buy a polytank to serve as a reservoir (about €400) and a solar powered waterpump (€406, excluding local transportation).
