Austin paakaisa zana nemakumi maviri "smart fountains" muna 2024, vanopokana vakazvidaidza kuti kupenga kwemari. Kwapera gore? $3.2M mukuchengetedza zvakananga, 9:1 ROI, uye mari yekushanya inokwira 17%. Kanganwa "kunzwa-zvakanaka zvivakwa" -zvitubu zvekunwa zvemazuva ano injini dzehupfumi. Heano maitiro anoita maguta mari yemvura yemahara.