Afloat switch imayang'anira kuchuluka kwa madzi m'malo osiyanasiyana okhala ndi mafakitale ndipo nthawi zambiri imalumikizidwa ndi pampu, valavu (valavu ya solenoid, valavu yamagetsi yamagetsi, ndi zina zotero), kapena alamu yodziwitsa wogwiritsa ntchito.Chifukwa cha mapangidwe ndi mitundu yosiyanasiyana, amatha kugwiritsidwa ntchito m'njira zosiyanasiyana.
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