The REEFE RainPro RM4000-4 Rain Mains System with PRJ100 Pump includes the RM1600-2 valve with 20mm outlet/mains inlet connections to provide a fully automatic rainwater-to-mains switching solution with minimal pressure loss on the mains supply. Designed for fast and simple installation, the Rain Mains valve uses no electronics, floats, solenoids, or cabling, ensuring dependable operation and long-term reliability. When rainwater is available, the system supplies pressurised tank water, and when the tank is empty or unavailable, mains water is automatically supplied while restricting flow to conserve usage.
Equipped with a high-performance PRJ100 jet pressure pump, automatic pressure controller, run-dry protection, and thermal overload safety, the RM4000-4 delivers strong and reliable water supply for domestic toilets, laundry, small homes, cabins, and outbuildings. With potable-water certification, WaterMark approval, and a fully hydraulic design, the system provides a simple, robust, and highly efficient rain-to-mains solution.
