Hi,
I need help setting up my ghl doser maxi.
Some context: First I got a ghl doser 2.1 stand alone and later I got a ghl doser maxi slave to dose 40l per day.

I was trying to dose 150 times a day at a maximum of ~ 267ml but I can't get more than 200ml, however you say it is possible to dose up to 320ml.
How can I dose 267ml each time?

thanks.