Isitulo Umsebenzi usekelwe kwimibhobho yamanzi, kwaye ijika indawo yendalo ibe yisihlalo esishukumayo esivumela ukuba uhlale okanye ulale phantsi kweso situlo njengokungathi umzimba ujikeleza ngokukhululekile kunye nokuhamba kwamanzi. Uphawu lwayo kukuqukuqela okuqukuqelayo kwamaza amanzi. Kungakhathaliseki ukuba ngaphakathi okanye ngaphandle, ngakumbi apho kukho ukukhanya, i-ripples yamanzi iya kubonisa ukukhanya kwendalo kunye nesithunzi emhlabeni. Kufana nomzobo oqingqiweyo onomzobo wobugcisa xa uphumle; nangona kunjalo, iba yinto enomdla yefanitshala xa ukudibana kwenzeka.