I-1.PVC impahla, intambo ewumgogodla enesendlalelo esivikelayo, ukuvikela ungqimba oluphindwe kabili, ukumelana kakhulu nokudonsa
2. Ukuhlolwa okuqinile, ukugoba ukugoba nezinye izinkomba kuphumelele uhlolo oluqinile noluthembekile, luphatha yonke imininingwane ngokungathi sína.
3.Ukushaja okusheshayo + ukudluliselwa kokukodwa, nikeza ukudlala okuphelele ekusebenzeni futhi uqinisekise ukushaja kanyekanye nokudluliswa kwedatha