Home Mixtures -Back Forward- Soft: 0-20 mg/l as calcium moderately 20-40 mg/l as calcium. Slightly hard: 40-60 mg/l as calcium. Moderately hard: 80/120 mg/l as calcium. Very hard: 120 mg/l as calcium.
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Soft: 0-20 mg/l as calcium moderately
20-40 mg/l as calcium. Slightly hard:
40-60 mg/l as calcium. Moderately hard:
80/120 mg/l as calcium. Very hard:
120 mg/l as calcium.