Fertigation integration with Rachio


What fertigation solutions are people using with Rachio?

I want to be able to have different fertilizers for different zones. I have been looking at ez flo and other systems, but without going into a commercial fertigation and mixing system at a ridiculous cost I have not been able to do what I want.

So I am thinking of using a PI with pumps for each fertilizer pumping into a mixing tank and then a Mazzei injector to pull from the mixing tank. I would use the rachio notifications to trigger the mixing events and mix with enough water in the tank to cover the run time for the zone.

Any thoughts?