Specifications include, but are not limited to: Existing irrigation systems at Valley Jr. High and Vista Elementary are made up of galvanized piping and quick coupler valves that require manual placement and rotation of sprinkler heads. The intent is to upgrade the systems while still utilizing the existing piping. Irrigation upgrades will include replacement of the quick coupler valves with new valve-in-head rotors installed on a swing joint. A new two-wire control system would be installed by installing a decoder in each head and pulling two-wire control wire in conduit to each new head and back to the new controllers. In addition, a few manual valves would be replaced with new control valves and master valves and flow sensors would be installed at the points of connection.