Rick and Brenda Epp of the Wild Roses Ranch near Lookingglass now irrigate their hay fields with less water, electricity, and labor. They did this by installing a custom-designed K-Line irrigation system. Parallel mainlines were buried. Stationary hydrants were positioned throughout the field. From the hydrants, water is pumped through above-ground tubes and sprinklers 50 feet apart. The tubes are made of tough, flexible polyethylene. Each sprinkler is protected inside a molded plastic pod. The heavy, flat-bottomed pod looks like a kettle with no lid and keeps the sprinkler upright. Rick sets the water pressure at 40 pounds per square …