I know it's early, but I have a winterization question. I took on a site this Spring with an older Toro hydraulic system. It's a lake fed system. There is a 1/4" line tapped in just downstream from the pump that feeds the electric/hydraulic manifold. Eventually, all of the water will be forced out of this 1/4" line. Will I still be able to cycle through all 12 zones without water feeding the valves? Thanks for your input.