mnpracing You are correct, I was looking at the same site and the 1" valves. I need the 3/4" valves. Well played man. But after looking at the fill times, I may be better with my funds to add a T to the brass valve, add another pump and another intake on the manifold. That will probably be a winter project. For now I think i will use the RainBird valves I got an Menards to replace the worn out valves that are in there currently. Especially the one with a broken solenoid.