Help me to set khd

[rocco bellafante]

Hi all!
Is here someone can me in khd setting?
I'll try to explain my doubts.

My khd was not costant with measurements.
In some days i think it works good , i had my kh between 7.1 and 7.3.. suddenly i had peak.
Khd ,in adaptive mode, cut off kh doser and It goes down...
These episodes happened several times

To solve the situation, i ordered to the ghl online store 3 complete heads, kh reagents with pvc tube.
I change components, i calibrate the dosos( averaging on 5 measurements) and now It looks ti work good.
I hope it works good costantly in the future days.

Now my doubts..
In the screen the is my setup.
I set in this way, because a friend tell me it is a good setup for his tank.
I'd like to understand how parameters influences khd operation. Limits, volume change,and test number.. in which way are connected?
Is better to have 6 tests and 6 dosages, or 6 test and 12 dosages?
I have 1000 lt tank, 12x30 ml dosages, and about 360 ml ti have 1 kh degree fall.

Which suggestions can You give me?