Hi. There are filters like what I leave in the link to remove impurities. There are more complicated versions for tartar. This being a set of bicarbonates, carbonates, salts and calcium is difficult to eliminate it in a simple way. There are special devices for "hard waters" but they are expensive. Regards https://articulo.mercadolibre.com.ar/MLA-644043108-filtro-agua-anti-sarro-sal-polifosfato-transparente-aser-_JM?matt_tool=87617634&matt_word&gclid=EAIaIQobChMIodm16tjT4wIViwyRCh3TrgIhEAYYBCABEgJYU_D_BwE&quantity=1&variation=36152264866 https://www.garbarino.com/producto/eliminador-de-sarro-pura-ablandador-automatico-softhaus/69d21a56a1?gclid=EAIaIQobChMIodm16tjT4wIViwyRCh3TrgIhEAYYAyABEgLA3fD_BwE