Muab piv txwv nrog cov roj hmab npoo npau npau cia, cov thawv hlau tsis muaj roj cia hlau tau tuaj yeem cuam tshuam ntau dua thiab siv ntau daim ntawv sau npe. Lub tank muaj kev xyuam xim seev cev, tiv thaiv kev cuam tshuam cov khoom tsim txom thiab cov yoov tshaj cum hauv cov huab cua, thiab kom ntseeg tau tias cov kua khaws cia hauv lub tank tsis yog tuaj yeem sab nraud. Qhov zoo saum toj no yuav ua rau cov roj cia hluav taws xob tsis zoo siv rau cov khoom noj khoom haus, cov tshuaj, thiab kev lag luam thiab kev lag luam.
Zus cia cov roj tso hluav taws xob tsis zoo siv rau cov tswv yim zoo nkauj thiab zoo nkauj. Yog li ntawd, nyob rau hauv cov txheej txheem ntau lawm ntawm cov khoom siv tsis thooj cov thawv, nws tseem ceeb heev kom xyuam xim rau txoj kev ua nyuaj ntawm cov xim nyhav tsis huv.
Hauv kev tsim cov hlau tsis muaj hlau, cov kauj ruam thiab cov txheej txheem yog cov khoom siv tshuaj tua blasting - txheej ib txheej ntawm cov txheej - vuam, kev sib tsoo, kev txhim kho, kev sim siab - kev muab tshuaj - txheej xim tom qab.
Kev ntxuav ntawm cov hlau ntawm lub pas hlau tsis muaj lub plhaub taub hau, lub hau ua ntej ntawm cov khoom siv, thiab tom qab ntawd ces tus qauv siv. Tom qab ua tiav lub cev, lub voj voos ntim raug ntxuav tawm, thiab cov ntawv xub thawj yog siv, thiab lwm yam. Lub tank yog txau nrog cov xim nrawm nrab thiab cov yeeb-tshuaj.