Ok I just tested my water. I haven't started adding calcium yet. But I'm going to set my doser now. Is it 6 hours after dosing KH?
So the readings are
July 20: KH 7, calc 500
July 21: KH 7.7, calc 500?
July 22: KH 7.7, calc 500
July 23: KH 7.7, calc 470
July 24: KH 7.7, calc 400