Alk measured with Salifert = 8 dKH and with Royal Nature = 10,1 dKH. Salifert 6,7 dKH control solution is measured as 9,1 dKH with Royal Nature test. Also sample for Marin Lab taken.

Added 8.12: MarinLab result is 10,4 dKH.
November 5, 2018 10:44