Noma yiluphi uhlobo lwedivaysi luzovela enkambweni yale noma leyo nkinga, inkinga ayiyena kabi, i-Key iyindlela efanele yokuxazulula inkinga.Bolisa sethula kafushane izinkinga ezijwayelekile.

1. Ngoba izinga lamanzi akulungile, izinga lokushisa lamanzi liphezulu noma liphansi, ukwehluleka kwamatshe, njll., Kuyadingeka ukwamukela izindlela zokwelashwa ezifanele ngokuya ngezinkinga ezihlukile.

2. Indandatho yokubopha uphawu iyaguga, ivuza noma iphukile. Lokhu kudinga ukuhlolwa ngokucophelela ngaphambi kokusebenzisa nokubuyiselwa ngesikhathi sendandatho yokubopha. Lapho sekuvele ikhefu, opharetha kufanele aqhubeke ngokunqumela noma abeke esikhundleni sawo ngaphansi kwesisekelo sokuqinisekisa izinga lokushisa eliphephile nengcindezi.

I-3. Ukuphuma kwamandla okuzenzakalelayo noma ukuphuma kwegesi lapho uhlangabezana nalolu hlobo lwesimo, gcina ngokucophelela isimo sokusebenza kwe-retort, senze ukubhaliswa, bese uqedela inzalo lapho kutholakala kalula. Uma ukuhanjiswa kumiswa isikhathi eside, udinga ukukhipha imikhiqizo ekubuyiselwe emuva bese uyigcina, bese uqhubeka nokusebenza ngenkathi ulinde ukululama ukululama.