So i attempted and partially succeeded at creating a closed loop for poison production. However, the loop keeps taking from both the input slot and output slot on the liquid mixer, resulting in the loop being slower and spastic if you will.

I have it set up to were i have a wall storage holding the liquids being taken out all but on via a ITD that then feeds correctly into the mixer, from there i have another ITD set to pull only the poison at back to the originating storage, but as stated that last part of the loop is pulling both the input and output.

is there a way to remedy this so it is a much smoother process? as i also intend to use this for organic soup production for hydro trays.