Muindasitiri yekuchenesa mvura, zvigadzirwa zvekusefa zvinoshandiswa zvakanyanya kubvisa zvakamiswa zvimedu, sediment, organic matter, makemikari, uye tupukanana mumvura, kunatsiridza pachena, turbidity, kunhuwa, uye kuravira.
Tinogona kupa zvinotevera zvine chekuita nekusefa zvigadzirwa muMvura kurapwa indasitiri.
