Yes. The system is always on with full system water pressure to each device on the system. It is this that makes the Plant Booster system uniquely capable of looking after watering your hanging baskets or potted plants on a 24/7 basis. Since each hanging basket and potted plant has its own control device, each basket and potted plant therefor gets individual attention, giving each plant water as and when it needs it, and only as much as it needs.
