Iivalvu zebhola ezisebenza ngemoto zinokuhlanganiswa ngokukhawuleza ngaphandle kokusebenzisa izixhobo ezikhethekileyo. Iingenelo zevalvu yebhola eqhutywa yimoto kukwakheka kwayo okuqinileyo, ukumelana nokuguguleka, kunye nokugcinwa okulula. Ivalvu yebhola yombane kulula ukuba uyiqhaqhe ukuze ifumaneke kwipropathi yemoto. Ikwalungele ukulungiswa ngaphandle kwenkqubo enzima. Umzimba wevalvu yevalvu yebhola eqhutywa yimoto eqhutywa ngombane ephezulu yenziwe ngezinto ezicocekileyo nezingenatyhefu. Ukumelana nokugqwala okunamandla luphawu lwevalvu yebhola eqhutywa yimoto. Ivalvu yebhola eqhutywa yimoto isetyenziswa kakhulu kulawulo lwemibhobho yamanzi acocekileyo kunye namanzi okusela aluhlaza, iinkqubo zokuhambisa amanzi kunye nenkunkuma, iinkqubo zemibhobho yamanzi amdaka kunye namanzi olwandle, iinkqubo zesisombululo se-asidi kunye neekhemikhali, kunye neminye imimandla emininzi. Ngexabiso elifanelekileyo levalvu yebhola eqhutywa yimoto, ungathatha zonke iintlobo zobukhulu ezifana nevalvu yebhola yombane eyi-intshi eyi-1, ivalvu yebhola eqhutywa yimoto eyi-intshi ezi-2 njalo njalo. Njengomvelisi weevalvu zebhola yombane onobuchule nonoxanduva, sithembekile ukuba iivalvu zethu zebhola eziqhutywa ngumbane zinokuba lolona khetho lufanelekileyo lwenkonzo esemgangathweni negqwesileyo.