: Press and hold the "M" (Menu) key for 5 seconds .
— Relevant for high-flow industrial and residential models. Key Technical Features Intelligent Regeneration manual descalcificador cillit data parat 75 best
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Test hardness weekly with test strips.
These often have scanned copies of older, discontinued models that are no longer on the official Cillit site. : Press and hold the "M" (Menu) key for 5 seconds