I have a question for you. I went to a job that had two many values and not enough stations at the timer to run them. A couple of them were hooked up to one wire. There all 3/4" values hooked to 3/4" main line. Theres barely enough gpm to push all the heads in one value at a time. I know they have a device that can split one wire from the timer into two, but will they come on at different times. How does that work? I can't have to values on at once theres not enough flow to get good coverage. What's your suggestion?