Isicelo: kulungele ukudlulisa amanzi acwebile nolunye uketshezi olunezinto ezibonakalayo namakhemikhali afana namanzi acwebile. Isebenza ekuhlinzekweni kwamanzi ezimbonini nasemadolobheni kanye ne-drainage, ukunikezwa kwamanzi okucindezelayo kwesakhiwo esiphezulu sesakhiwo, ukuchelela okufafaza kwengadi, ukucindezela kwamanzi ekucimeni umlilo, ukuthutha amabanga amade, izinhlelo ze-HVAC, njll. Izinga lokushisa elisebenzayo alikho ngaphezu kuka-80℃.