Zapadera zakuthupi ndi kapangidwe ka zisa za ceramic fyuluta zimatsimikizira mikhalidwe yake. Choyamba, ili ndi mphamvu zabwino, kuvala ndi kukana dzimbiri, komanso moyo wautali wautumiki. Pa nthawi yomweyo, chifukwa cha mphamvu zake zabwino, palibe mapindikidwe wa micropores, ndi khola luso zizindikiro popanda kusinthasintha; Ma pores ndi ang'onoang'ono (pafupifupi 1.5 microns), capillary kanthu ndi yamphamvu, ndipo filtrate imangoyamwa mu ma micropores. Ntchito ya pampu yopuma ndikutulutsa filtrate kuti ipulumutse mphamvu; (mpaka 0.098Mpa) fyuluta keke chinyezi ndi otsika, ndi coefficient ntchito fyuluta ndi mkulu; komanso chifukwa cha ma pores ang'onoang'ono, zomwe zimayimitsidwa zolimba mu filtrate ndizochepa, ndipo zosefera zimamveka bwino, zomwe zingagwiritsidwe ntchito poyendetsa madzi pamalopo kuti ateteze kuipitsidwa kwa chilengedwe ndikusunga madzi.