Water on Demand™ systems require no schedule programming and apply water when the soil moisture level falls below a set threshold. These systems will only apply the water needed to raise the moisture to an upper threshold. This system has a "lower" and "upper threshold."
Water on Demand™ systems constantly monitors the soil moisture levels. When the level falls below the "lower threshold" the controller irrigates until the moisture reading reaches the "upper threshold." The system will only water when needed and will only apply the necessary water, maintaining the soil moisture level in a constant range. Watering windows may be programmed to allow irrigation only during specific times.
The controller only waters when the moisture level is below the "lower threshold" and stops watering when the moisture level hits the "upper threshold." Notice when it rained on Thursday the duration between irrigation was automatically increased for several days. Water on Demand® Irrigation is easy to setup. Set your moisture thresholds then set a "water window" when you want the controller to irrigate. Water on Demand® is the most efficient irrigation method possible, only watering when needed the correct amount of water needed.