What do you need help with?
What are you dosing now to keep your levels stable?
Dosers are NOT meant to bring any levels up, They are meant to be calibrated to the exact needs of the tank.
You manually get your tank where it needs to be and then set the doser to what it takes to maintain that level.
IE: My tank takes 80ml of Alk per 24 hrs to keep the Alk level at 9.0
So the doser is set to dose 80ml per 24hrs to maintain that level of 9.0 alk.
If the Alk keeps rising then the unit is set too high, if it keeps droping then it's set too low.