Kunezinhlobo ezingaphezu kwe-100 zemikhiqizo ye-plunger ye-YS, engafanisa amaphampu omjovo kaphethiloli wezimoto ezihlukahlukene kanye nemishini yokusebenza yamakhasimende omhlaba. I-YS plunger inokunemba okuphezulu futhi ingakhiqiza uphethiloli onengcindezi ephansi ibe uphethiloli wengcindezi ephezulu phakathi nesikhathi esishiwo, kuyilapho iqinisekisa ukuguquguquka kwe-plunger phakathi nomsebenzi. Ukunyakaza okuphindaphindayo kwe-plunger kumkhono we-plunger kwenza umsebenzi wepompo lomjovo ukumunca uwoyela namafutha ompompo.