I don't think my original post was as clear as it should have been. My sump level today is controlled from a float switch in the sump connected to a pump in my RO/DI reservoir. It all works very well.
What I have to do manually is turn on my RO/DI water to fill the reservoir and that is what I am trying to automate. What I need help with is the magical box to do this with some float switches, solenoids etc..
Any help would be appreciated.
Dave