I-1.Yenziwe ukusuka kwintsimbi yentsimbi ephezulu, uxinzelelo lukhululwe ngenxa yobungqongqo kunye nokuchaneka kwexesha elide.Yeyona ilungileyo kwimveliso eqhubekayo.
2.Iintsika eziphindwe kabini kunye nesakhiwo sesikhokelo seplunger esinye, esenziwe kwi-copper bush endaweni yebhodi yemveli yokunciphisa ukukhuhlana.Sebenza ngokuthambisa ngenkani ukunciphisa ubunzima bobushushu besakhelo, uphucule umgangatho wesitampu kunye nokwandisa ubomi benkonzo yomatshini.