1. Ukuxhathisa ulwelo kuncinci, kwaye ivalve yebhola egcweleyo ayinakuchasana nokuhamba.
2. Isakhiwo esilula, ubungakanani obuncinci kunye nobunzima obulula.
3. Vala kwaye uthembekile.Inemigangatho emibini yokutywina, kwaye izixhobo zangoku zokutywina ezingaphezulu kweevalvu zebhola zisetyenziswa ngokubanzi kwiiplastiki ezahlukeneyo, ezinomsebenzi wokutywina kakuhle kwaye zinokufikelela ukutywinwa okupheleleyo.Ikwasetyenziswa ngokubanzi kwiinkqubo zevacuum.
4. Kulula ukusebenza kwaye uvule kwaye uvale ngokukhawuleza.Ifuna kuphela ukujikeleza i-90 ° ukusuka ekuvuleni ngokupheleleyo ukuya kuvaliwe ngokupheleleyo, ekulungele ukulawula kude.
5. Ukugcinwa ngokufanelekileyo, ulwakhiwo olulula lwevalve yebhola, ikhonkco lokutywina elishukumayo, kulula ukulichitha kunye nokutshintsha indawo.