How this calculator works
Enter the desired increase in dKH, not the final alkalinity. Large corrections should be split into smaller doses and confirmed with an alkalinity test before additional dosing.
Common questions
Should I enter current or target dKH?
Enter the difference. For a current value of 7 dKH and a target of 8 dKH, enter 1 dKH.
Bicarbonate or carbonate?
Both increase alkalinity, but sodium carbonate has a stronger short-term pH effect. Select the material you actually use.