Using kalk water only for topoff?

[stephane]

yes it help expand the quantity of kalk you use lower the PH of the solution when I forget to refil the reactor for two day the calcium and alk get to low so I do a mixture of 30 ml of vinergar in on teaspoon of kalk mix it in a glass and put that ting in the tank

Dont do it at home until you realy know what you doing