in attachments there is a drawing on how I connected my latching dc valves.
I used 2 relay module as a H bridge, and a 8 reley module to control the valves. Arduino uses pin 4 to control the H bridge. It switches the hunter solenoid
But! There seems to be a short circuit when the solenoid is active(the solenoid is the source of the short circuit)...
Edit: I sent you a pm since, I am, as well, trying to make an irrigation system, and I think it would be nice if we could collaborate...
