I inherited a sprinkler system with a purchased house (built in 1986). As far as we can tell, everything was still the originally installed items, with broken heads being replaced. My current control unit is a Hunter ICC (just installed) My current valve/zone count is 8. The issue at hand is that I have one zone that covers some limited grass, including a 5'x40' strip between driveways, as well as all the garden areas. I would like to break off the garden heads in its own zone due to differing ...