Identify a genuinely underserved location
₹0 · 9 hrsTarget areas with poor or unreliable piped water access and real willingness to pay — not areas with free, reliable municipal supply.
Done when You've confirmed the target area has unreliable piped water and no free, reliable alternative within realistic walking distance.
Watch out: 'Free' or subsidised alternative water sources nearby can undercut willingness to pay more than initial research suggests.