Ukufakwa kwemilomo yombhobho luhlobo lwe-siphon, ukungena okungamanzi akufuneki ukuba kucinezelwe, umbhobho wokufunxa ulwelo olukwisitya ungene kumbhobho wesiphumo seVenturi, uxubana nomoya ocinezelweyo kwaye uwukhuphe. Olu luhlu lwemilomo yemilomo luxhasa ulwenziwo, nceda unxibelelane nathi