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WERKEN ZE WEL? Ron Bosch, adviseur en HBO-hoofddocent Installatietechniek gaat in dit artikel in op drie soorten ontharders die erg populair zijn. Het gaat om de magnetische ontharder en de ontharder die werkt op basis van kooldioxide toevoeging aan het drinkwater en het Greenguard onthardingsprocedé. Dit artikel is een vervolg op een eerder verschenen publicatie […]