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Hardness-calculator

See also: Mixing-calculator - CO2-calculator

Here you can calculate the resulting hardness in dKH when you mix tapwater with water from a reverse-osmosis unit.
Please enter the hardness and volume of the two different fluids:

Tapwater		R/O-water
dKH		dKH
Total volume		Desired hardness
Liter		dKH

Calculation is not possible !