EMASbolivia
9 old videos with fewer than 5,000 views from this channel.
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22:17
Warm water storage tank for the EMAS solar heater
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25:51
EMAS summary
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21:46
odourless and inexpensive EMAS latrines
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38:15
EMAS do it yoursef pump, valves made of pipe pieces
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15:44
EMAS technical innovations 2018 (piston ring, stone handle, drive belt)
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17:49
save household waste water treatment plant
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49:05
clase calefon
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9:17
iron elimination in family wells
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16:04
self made pipe fittings