1. Bohloeki, ha bo chefo, ha bo na litšila, ha bo na likokoana-hloko, le tiiso ea boleng ba mokelikeli.

2. E hanana le ho bola ha lik'hemik'hale, mobu le lintho tse phelang metsing tsa metsing, e hanyetsanang le cathodic disbondment

3. Ts'ebetso ea ho kenya e hōlile, e loketse, ebile e potlakile, 'me khokahanyo e tšoana le pipe e tloaelehileng ea galvanized

4. Ho hanyetsa boemo ba leholimo bo botle, bo loketseng maemo a thata a kang mahoatata le saline-alkali

5. Lerako la pipe e boreleli, ho ntlafatsa bokhoni ba ho fetisa le bophelo bo bolelele ba tšebeletso