I am still testing need to wait 24 hours to see the ML results inside my container. I am testing this right now for you on a P4 connected to a spare doser head. So far looks like it is working.
First we need two Timers
Timer: 1 ( This is your dosing schedule. With a understanding your only going to be doing it 1/2 of this time. (I know should have included Friday :))
Timer: 2 (Is set up for the times you would dose for)
Advance Program Logic
With the two timers we created above we are going to tied them together with a And Statement
Assign the Program Logic to the Switch Channel:
Find a Free Switch Channel Port and assign the Program logic we created in the step before
Assign that Switch channel your Doser Port:
With the Switch Channel now programmed we now assign that to your doser.
I am show how to do this is GHL Connect App also if you would like :)