Drain the empty containers completely and rinse them three times with clean water.
Puncture holes in them to ensure they cannot be used again, and flatten them.
Bury them in a pit far away from any house or animal pens.
This pit should be at least 50m from a water source such as a river, dam or borehole, and in relatively high ground. The soil should not be too sandy, otherwise it might absorb leftover poisons.
Line the pit with a 3cm to 5cm layer of lime.
Place the containers and other farm waste in the pit in layers 10cm to 15cm deep, covering each layer with a layer of soil.
Cover the pit with canvas to keep it dry.
When the contents of the pit are 50cm from the top, fill with soil and compact it, creating a mound so that rainwater runs.
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