ukwehluleka kophawu lwephampu nokuvuza kungesinye sezizathu ezivame kakhulu zokuphelelwa yisikhathi kwephampu, futhi kungabangelwa izici eziningi. Ukuze ugweme ukuvuza kwe-pump seal kanye nokwehluleka, kubalulekile ukuqonda inkinga, ukukhomba iphutha, futhi uqinisekise ukuthi izimpawu zesikhathi esizayo azibangeli omunye umonakalo wephampu futhi...
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