At the end, the solution i chose was the simplest and took me 5 minutes to get there. First i had to fix my drawing with the help of one of my co-workers that knows his way around electronics. Then if you follow the red line on the bottom - you will see what i did. Now the whole thing works using 220V, but the relay is providing dry contact and not passing 220V as it did before, so now i can connect it to my water computer in the yard and every time the dog comes to the lawn to dig, the sprinklers make sure she won't