Nthawi zambiri pamakhala zonyansa zambiri m'madzi achilengedwe, zomwe zazikulu zomwe zimakhudza chowotcha ndi: zinthu zoyimitsidwa, colloidal matter ndi zinthu zosungunuka.
1. Zinthu zoimitsidwa ndi zinthu wamba zimapangidwa ndi matope, mitembo ya nyama ndi zomera, ndi ma molekyulu ena otsika, omwe ndizinthu zazikulu zomwe zimapangitsa kuti madzi asokonezeke.Zonyansazi zikalowa mu exchanger ya ion, zimaipitsa utomoni wosinthira ndikusokoneza mtundu wamadzi.Ngati alowa mu boiler mwachindunji, mphamvu ya nthunzi imatha kuwonongeka mosavuta, imadziunjikira mumatope, imatseketsa mapaipi, ndikupangitsa chitsulo kutenthedwa.
2. Zinthu zosungunuka makamaka zimatanthauza mchere ndi mpweya wina wosungunuka m'madzi.Madzi achilengedwe, madzi apampopi omwe amawoneka oyera kwambiri amakhalanso ndi mchere wosiyanasiyana wosungunuka, kuphatikiza calcium, magnesium, ndi mchere.Zinthu zolimba ndizomwe zimayambitsa kuwonongeka kwa boiler.Chifukwa kuchuluka kumawononga kwambiri ma boilers, kuchotsa kuuma ndi kuteteza sikelo ndiyo ntchito yayikulu yopangira madzi ofunda, omwe angapezeke kudzera muzamankhwala kunja kwa boiler kapena mankhwala opangira mankhwala mkati mwa boiler.
3. Mpweya wa okosijeni ndi mpweya woipa umakhudza kwambiri zida zopangira mpweya wamafuta mu gasi wosungunuka, zomwe zimayambitsa dzimbiri la okosijeni ndi dzimbiri la asidi ku boiler.Oxygen ndi hydrogen ions akadali othandiza kwambiri depolarizers, omwe amathandizira kuti electrochemical corrosion.Ichi ndi chimodzi mwazinthu zofunika zomwe zimayambitsa kuwonongeka kwa boiler.Mpweya wosungunuka ukhoza kuchotsedwa ndi deaerator kapena kuwonjezera mankhwala ochepetsa.Pankhani ya mpweya woipa, kusunga pH ndi alkalinity ya madzi amphika kumatha kuthetsa zotsatira zake.