Sera water hardening for R/O, spring & soft water.
Sera mineral salt contains minerals that are present in natural water
in biologically correct amount, which are required for enriching
mineral-poor water (e.g. R/O water).
Water conditioned with Sera mineral salt can be used immediately.
Dosage - 5g for each 100 litres results in a carbonate hardeness of 0.6 dH.