Team Water Drop The Taapu! Design Review 2 Water Drop

Team Water Drop Adam French Anshuman Bapna Chris Bradford Eric Tsai Saving the world one bike at a time Anshuman Bapna Hopelessly out of touch with rural India Chris Bradford A Virgo Eric Tsai Monomaniacal passion to sing “Hava Nageela” Design Review 2 Water Drop

Team Water Drop Adam French Anshuman Bapna RAMU! Chris Bradford Saving the world one bike at a time Anshuman Bapna Hopelessly out of touch with rural India RAMU! Our newest team member Chris Bradford A Virgo Eric Tsai Monomaniacal passion to sing “Hava Nageela” Design Review 2 Water Drop

Ramu – the dollar-a-day farmer Lower caste farmer 2-acre plot growing beans and sorghum but nothing in dry season Supports a family of 9; save half of crop for consumption Get my info from radio or rare city visits Dream: grow tomatoes or eggplants in the dry season Problem: The well has dried up, and flood irrigation is expensive and inefficient. Drip irrigation is great, but requires a gravity tank. Design Review 2 Water Drop

So what’s wrong with the Gravity Tank? Too expensive at Rs 600 ($12) Unnecessary valve Need elevated place Theft (Rs 600 is ½ month’s income!) The Need: A better way to get water from storage to drip-irrigation Design Review 2 Water Drop

The Taapu! Design Review 2 Water Drop

The Taapu! Design Review 2 Water Drop

* Irrigation * Disaster Relief Value Benefits * Irrigation * Disaster Relief 270 L Storage Low-cost Easy Set-up Transportable Readily available materials Design Review 2 Water Drop

Installation Design Review 2 Water Drop

But they can be easily patched! Maintenance Holes may form . . . But they can be easily patched! Design Review 2 Water Drop

Ramu’s buying decision Cuts 60% off gravity tank price Cost of the micro-irrigation system reduced from Rs 950 to Rs 550! Rs 400 savings =      •10 day’s income      •My child’s annual school fee      •The cost of seed/fertilizer for another season      •Drip-irrigation system for another 100 m2 plot Design Review 2 Water Drop

A Scalable Manufacturing Process Simple, scalable components rope, flat sheet, PVC, bar, tube Flat sheet made watertight Pinched between bar and PVC Low capital investment Local assembly possible at low labor cost Design Review 2 Water Drop

Watertight Seal Steel bar Slit PVC Pipe Bag material 1 2 3 4 5 Design Review 2 Water Drop

Viable Economics Manufacturing cost: $2.75 Retail price: $4.50 Direct Materials: $2.50 0.5 hours of labor: $.25 Retail price: $4.50 ~30% markup for both manufacturer and distributor Building 16 units per day with one employee would make $13 profit per day! Design Review 2 Water Drop

Marketing and Distribution Primary audience: $1/day farmers in semi-arid, monsoon, no groundwater availability. Reach via: Drip irrigation system demonstrations (IDE) Movievans! Demonstrations of Taapu by local manufacturers Distribution channels: Local manufacturers Local resellers Design Review 2 Water Drop

Timeline for Expansion Refinement Pilot Tests Develop Local Partners Rollout February Feb/March March -- ? First step: Refinement of Design Eliminate leaks, reduce costs Next: Test with Ramu and Friends Tips for further refinement Design Review 2 Water Drop

Problems and Questions Is it durable? It’s not very attractive! How best to repair it? Does it take up too much space? Are there alternate uses? Can Ramu assemble for himself? Design Review 2 Water Drop

Potential Refinements Design Review 2 Water Drop

Expert Testimony Martin Fisher Technical Director, ApproTEC Cost Reduction is Key Must determine appropriate bag size for market - How often replenished? User perspectives of “quality” may vary Design Review 2 Water Drop

Summary and Conclusions Current IDE Gravity Tank needs improvement A much cheaper, higher volume tank can be profitably manufactured All components are scalable, and bags could be manufactured or assembled locally A number of design problems remain to be solved Design Review 2 Water Drop

Future Steps Prioritized Group Research Reinvigorating Ideation Design Review Ideation Refined Mission Prioritized Group Research Reinvigorating Ideation Refining Mission Statement Design Review 2 Water Drop