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RE: Evolving the Tiger Toilet Part 1
https://www.slideshare.net/mobile/Oxfamgb/tiger-worm-toilets-oxfam-public-health-engineering-webinar this is a Tiger toilet project in Africa
https://www.slideshare.net/mobile/Oxfamgb/tiger-worm-toilets-oxfam-public-health-engineering-webinar this is a Tiger toilet project in Africa