Lapho isitshalo sikhetha ipompo yodaka noma okuqinile okuxubile, ukukhetha akufanele kuqale kuphela ngentengo. Ukugeleza, ikhanda, isilinganiso sezinto eziqinile kanye nosayizi wezinhlayiyana zinquma ukuthi iphampu izohamba ngokuzolile noma iqhubeke ime ukuze ihlanzwe. Amanothi epompo anikeziwe ahlanganisa isevisi ye-slurry lapho ukugxila okuqinile kungafinyelela ku-50-60% ngesisindo, ngakho abasebenzisi badinga ukuchaza okuphakathi ngokucace ngangokunokwenzeka.
Ukuze uthole ulayini omusha, sivame ukubuza mayelana nobude bepayipi, usayizi wokuphuma, amahora okusebenza nokuthi ingabe udaka lunesihlabathi, i-fiber noma ikhemikhali. Iphutha elincane kulesi sigaba lingaholela enjinini engalungile noma ukugqoka okusheshayo ku-impeller. Ukukhetha ngokucophelela iphampu ye-slurry kwenza ukufakwa kamuva kube lula futhi kunikeza ithimba elinakekelayo iphampu abangalinakekela ngempela. Kungakho ingxoxo emfushane yobuchwepheshe ngaphambi koku-oda ilusizo kuzo zombili izinhlangothi.
