I dont think you will keep your params stable without a dosing pump as its just too hard to dose by hand.
I dose approx 1dkh + equivalent calcium (2part) per day keeps me around 9dkh and 450 calcium. The dose is spread out over 24hours.
Yeah its getting the useage stable sadly, Iv been testing daily and recording to try get an accurate usage so i can dose for full week via pump and keep an eye on it