Makina a C pampu amagwiritsa ntchito ma impeller otsekedwa achikhalidwe okhala ndi njira imodzi. Mawonekedwe ndi kukula kwa njirazi zimakonzedwa bwino kuti zichepetse kutsekeka ndikutulutsa mosamala tinthu tating'onoting'ono ta zinyalala ndi zimbudzi. Zitha kugwiritsidwa ntchito pamabowo amadzi ophikira moto, mabowo amadzi ophikira pansi pa garaja, mabowo amadzi ophikira madzi amvula, ndi zina zotero.