Vuto lomwe likupitilirabe la madzi m'mphepete mwa nyanja ku Bangladesh litha kuwona mpumulo pokhazikitsa mbewu zosachepera 70 zamadzi ochotsa mchere, zomwe zimadziwika kuti Reverse Osmosis (RO).Zomera izi zakhazikitsidwa m'maboma asanu a m'mphepete mwa nyanja, kuphatikiza Khulna, Bagerhat, Satkhira, Patuakhali, ndi Bar...
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