Mfundo yoyendetsera ntchito
● Pazikhalidwe zogwirira ntchito, valve imakhalabe yotsekedwa.
● Kuthamanga kwapadera kumayikidwa mwa kusintha kasupe ndi mtedza wopanikizika.
● Pamene kuthamanga kwa mipope kuli pamwamba pa kuthamanga kwapadera, valavu imakhala yotseguka kuti madziwo adutse kuti achepetse kuthamanga kwa mapaipi.
● Vavu ikhoza kukhala ndi chogwirira kuti izindikire kutseguka pang'ono.Pamene chogwiriracho chimakhala chotseguka pamalo opangira opaleshoni, chotsukira chimatha kuyenda ngakhale ma valve otaya.