descaling

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descaling

[dē′skāl·iŋ]
(engineering)
Removing scale, usually oxides, from the surface of a metal or the inner surface of a pipe, boiler, or other object.

descaling

Removing scale, 8 that forms on the inside of hot water heaters, boilers, etc.
References in periodicals archive ?
DESCALING KETTLE TO descale a kettle first unplug it and fill it with half water and half clear vinegar.
DESCALING A KETTLE To descale a kettle first unplug it and fill it with half water and half clear vinegar.
It costs a few hundred pounds but means you never have to descale your kettle, dishwasher or washing machine and you don't get streak marks on sinks.