I wired my cooler to a high voltage relay in my Omni Panel. So I used a free breaker to supply power to the relay and then the relay sends it to the cooler when I turn it on/off with my app or schedule. I only used one valve actuator for the water supply line to the cooler. I had a dedicated supply/return line at the pad for the cooler. If you are sending the return water back into the pump intake like the directions show for a "existing" install, you will for sure use 2 actuators.
The cooler does not draw any current to speak of. It has the on/off switch that you could use...but that will make it where you can't automate it. I don't know anything about the easytouch system. What all do you have running on it now, breaker wise?