1. Yog tias muaj suab txawv txav los ntawm cov khoom siv sludge kom qhuav, ua ntej xyuas seb cov iav hniav sib phim. Yog tias thawj lub iav kis tau raug kho kom loj dhau, kev kho kom raug tuaj yeem tawm suab txawv txav. Yog tias cov iav hnav hnyav dua, lub iav yuav tsum tau muab tshem tawm thiab hloov tam sim ntawd.
2. Yog tias lub iav bearing loj, nws kuj yuav ua rau lub suab txawv txav. Qhov saum npoo ntawm cov menyuam ncej ntawm tib pab pawg tsis sib npaug lossis ncaj qha tib yam li lub tog raj kheej, uas yog tshwm sim los ntawm cov kabmob iav. Rau cov iav uas ua rau muaj qhov txawv txav, qhov kev taw qhia meej ntawm qhov xwm txheej yuav tsum raug kho. Yog tias koj hnav nws hnyav dua, disassemble nws tam sim ntawd, lub zog hnyav dua hnav.
3. Khaws qhov sib npaug thiab ruaj khov ntawm cov khoom noj thaum lub sij hawm pub mis. Tus nqi pub mis yuav tsum tsis txhob siab dhau lossis qis dhau, txwv tsis pub nws yuav ua rau tsis sib npaug ntawm sab laug thiab sab xis ntawm lub tog raj kheej, thiab tseem ua rau lub suab txawv txav hauv cov tshuab ziab khaub ncaws thiab khoom siv.
