Hariho na valve isubira inyuma muruganda ruvanze na asfalt, mubusanzwe ntabwo itera ibibazo, ntabwo rero numvise ibisubizo byayo muburyo burambuye mbere. Ariko mugukoresha nyabyo, twahuye nubu bwoko bwo gutsindwa. Tugomba kubyitwaramo dute?
Kunanirwa kwinyuma ya valve yo kuvanga ibihingwa bya asfalt ntabwo bigoye, ni ukuvuga ko guhindukira atari igihe, kumeneka gaze, gutsindira amashanyarazi ya electromagnetic, nibindi. Impamvu zihuye nibisubizo birumvikana ko bitandukanye. Kugirango valve isubira inyuma idahindura icyerekezo mugihe, mubisanzwe biterwa no gusiga amavuta nabi, isoko yamenetse cyangwa yangiritse, umwanda wamavuta cyangwa umwanda biguma mubice byanyerera, nibindi. Kubwibyo, birakenewe kugenzura imiterere ya amavuta hamwe nubwiza bwamavuta yo gusiga. Viscosity, nibiba ngombwa, amavuta cyangwa ibindi bice birashobora gusimburwa.
Nyuma yo gukoresha igihe kirekire, valve isubira inyuma ikunda kwambara impeta ya kashe ya kashe ya kashe, kwangirika kwuruti rwa valve nintebe ya valve, bikaviramo imyuka ya gaze muri valve. Muri iki gihe, impeta yo gufunga, igiti cya valve nintebe ya valve igomba gusimburwa, cyangwa valve ihinduranya igomba gusimburwa muburyo butaziguye. Kugirango ugabanye igipimo cyo kunanirwa kuvanga asifalt, kubungabunga bigomba gushimangirwa burimunsi.