Izinhlelo zokupholisa ukucwilisa ukucwilisa zisebenzisa uketshezi olungezona oluya kupholile imishini ye-elekthronikhi, njengamafutha amaminerali noma uketshezi olufaka khona. I-fluid ngokuvamile igcinwa ethangini noma esinye uhlelo oluvaliwe. Imishini ye-elekthronikhi iyabe isilungiselelwe ukucwiliswa yinqubo yokucwilisa bese icwiliswe kuketshezi futhi ipholiswe ngohlelo lokushintshanisa ukushisa.