Mu bikorwa remezo bigezweho by’amazi, cyane cyane mu buryo bw’ingomero n’ibigega, irembo ry’amazi rikoreshwa mu kuzimu rigizwe n’uburyo bw’ingenzi bwo kugenzura neza amazi. Iyi nyubako yihariye, ikunze kwitwa valves za wall penstock cyangwa valve ya penstock ishyirwa ku rukuta, yakozwe kugira ngo igenzure amazi asohoka binyuze mu irembo rihagaze cyangwa ritambitse rihujwe n’inyubako za sima cyangwa ibyuma. Uburyo bwo gukora buri hagati ya sisitemu za penstock zikoreshwa n’intoki—zikwiriye gukoreshwa mu buryo budasaba abantu kugenzura—kugeza ku buryo bugezweho bwikora, butuma habaho guhindura neza urugero rw’amazi n’umuvuduko w’amazi kugira ngo bihuze n’ibyo akeneye mu mikorere.

Nk'inkingi y'ingenzi mu buhanga bwa hydraulic, irembo rya penstock sluice rigaragaza uburyo bwo guhuza ubuziranenge, kuramba, no guhuza ibintu. Ryaba rikora nk'irembo rya penstock rikoreshwa n'intoki mu kuhira mu buryo buciriritse cyangwa imashini ikoresha ikoranabuhanga mu ngomero nini z'amashanyarazi, uruhare rwaryo mu kuringaniza imiyoboro y'amazi, gukumira imyuzure, no kunoza umutekano w'inyubako ntirugereranywa.