RO water at 3dkh

[Saj]

I need some chemistry advice.

my ro water has a alkalinity of 3kdh, it becoming a problem when i have to to up my tank through evaporation loss.

I'm thinking of adding Kalwasser Stirrer will this help he to raise my kdh value when adding ro through it?

or is there another way to do so?

 

[Randy Holmes-Farley]

Is it RO/DI, or just RO?

I don't understand. The problem is elevated alkalinity in the tank?

Mixing this into limewater will likely precipitate calcium carbonate, but won't reduce the calcium/alkalinity imbalance that the alkalinity in the input water causes.