This study conducts cost-benefit analyses on two interventions that can address the challenges of insufficient water supply, particularly for those living in informal settlements. The first intervention is to substantially increase the supply of water by 230 million L daily with a new facility from the Shire River. This is one of the future projects identified by the Blantyre Water Board and is currently only 47% financed with a loan from India’s Exim Bank (BWB, 2021). The second intervention is the installation of E-Madzi kiosks across Blantyre, similar to the ones that have recently been rolled out in Lilongwe. These E-Madzi kiosks are automated water dispensers that replace in-person kiosks while ensuring increased access to water and lowering water costs by 65%.