Imikorere yikinyugunyugu cyamashanyarazi nikigomba gukoreshwa nka valve yaciwe, valve igenzura na valve igenzura muri sisitemu y'imiyoboro.Irakwiriye kandi mubihe bimwe bisaba kugenzura imigendekere.Nibikorwa byingenzi mubikorwa byo kugenzura inganda zikoresha inganda.