Rainwater Management Units – Automatic Control for Rainwater Harvesting Systems
With a GreenLife rainwater management unit, you can control your rainwater harvesting system conveniently and automatically. These intelligent control systems regulate pump operation, monitor low water levels, and activate mains water top-up when required – ensuring a reliable supply while maintaining hygienic separation between rainwater and potable water.
Ideal for applications such as toilet flushing, washing machines, and garden irrigation, our control units are available in both digital and manual versions. They can be combined with top-up tanks, pressure-boosting modules, and smart home control systems to create a customized water management solution.
Designed for efficient, quiet, and safe operation, GreenLife rainwater management units provide dependable performance for both new installations and retrofit projects, helping you maximize the benefits of sustainable rainwater use in your home and garden.
GTN 6 drinking water make-up module, manual
GTN 6 module for manual drinking water replenishment (gray)Includes 3-way ball valve, float valve, inlet plate, and fittingsThe effective usable volume of the tank is approx. 6 liters with emergency overflow (free outlet)Spare part for the GRM 6 manual drinking water replenishment module
GTN 7 drinking water make-up module, automatic
GTN 7 module for automatic drinking water replenishment (gray)Includes motorized 3-way valve, float valve, inlet plate, and fittingsThe effective usable volume of the tank is approx. 6 liters with emergency overflow (free outlet)Replacement part for the GRM 7 automatic drinking water replenishment module
Pump E.sybox - electron. pressure boosting system
DetailsThe E.sybox – your smart solution for boosting water pressure in the home. The E.sybox requires no additional components for installation. It consists of a self-priming multistage pump, an electronic inverter for speed control, flow and pressure sensors, a high-resolution rotatable LCD display, and an integrated 2-liter expansion tank. The E.sybox can be installed both vertically and horizontally. It can also be installed in tight, poorly ventilated spaces. The water-cooled motor, the ABS housing with sound-absorbing properties, the vibration-damping feet, and the electronics make it quiet (45 dB) and compact.
Pump E.sybox twin - electron. pressure boosting system
DetailsThe E.sybox – your smart solution for boosting water pressure in the home. The E.sybox requires no additional components for installation. It consists of a self-priming multistage pump, an electronic inverter for speed control, flow and pressure sensors, a high-resolution rotatable LCD display, and integrated 2-liter expansion tanks. The E.sybox can be installed both vertically and horizontally. It can also be installed in tight, poorly ventilated spaces. The water-cooled motor, the ABS housing with sound-absorbing properties, the vibration-damping feet, and the electronics make it quiet (45 dB) and compact.
Rainwater manager GRM 2.0 (automatic)
DetailsThe GRM 2.0 Rainwater Manager supplies all consumers with water fully automatically. If there is no rainwater in the underground tank (e.g., due to a prolonged dry spell), the pump is automatically supplied with potable water via the replenishment tank without any detours. Once the underground tank refills, the system automatically switches back to rainwater supply. The pump (Amiga MH800 4M cast iron/stainless steel) is equipped with dry-run protection. The free outlet in accordance with DIN EN 1717 prevents rainwater from mixing with water from the water utility.
Rainwater manager GRM 2.0 (automatic) with brass pump MH 60
DetailsThe GRM 2.0 rainwater management system with MH 60 brass pump supplies all consumers with water fully automatically. If there is no rainwater in the cistern (e.g., due to a prolonged dry spell), the pump is supplied with drinking water directly via the gray makeup tank. Once the cistern refills, the system automatically switches back to rainwater supply. The pump is equipped with dry-run protection. The free outlet in accordance with DIN EN 1717 prevents rainwater from mixing with water from the water utility.
Rainwater manager GRM 3.0 (manual)
DetailsThe GRM 3.0 Rainwater Manager—with manual switching from rainwater to potable water supply—supplies water to all consumers. If there is no rainwater in the underground tank (e.g., due to a prolonged dry spell), the pump’s supply must be switched manually. Once the underground tank refills, the system can be manually switched back to rainwater supply. The pump is equipped with dry-run protection. The free outlet in accordance with DIN EN 1717 prevents rainwater from mixing with water from the water utility.
Rainwater Manager Home & Garden GRM 2.0 (automatic) - expansion package
DetailsThe GRM 2.0 Rainwater Manager supplies all consumers with water fully automatically. If there is no rainwater in the underground tank (e.g., due to a prolonged dry spell), the pump is automatically supplied with potable water via the replenishment tank without any detours. Once the underground tank refills, the system automatically switches back to rainwater supply. The pump is equipped with dry-run protection. The free outlet in accordance with DIN EN 1717 prevents rainwater from mixing with water from the water utility. Scope of deliveryRainwater Manager GRM 2.0 (automatic)Floating intake filter incl. 10m hose"Rainwater" labeling setConnection setClamp
Rainwater Manager Home & Garden GRM 3.0 (manual) - expansion package
DetailsThe GRM 3.0 Rainwater Manager—with manual switching from rainwater to potable water supply—supplies water to all consumers. If there is no rainwater in the underground tank (e.g., due to a prolonged dry spell), the pump’s supply must be switched manually. Once the underground tank refills, the system can be manually switched back to rainwater supply. The pump is equipped with dry-run protection. The free outlet in accordance with DIN EN 1717 prevents rainwater from mixing with water from the water utility. Scope of deliveryRainwater Manager GRM 3.0 (manual)Floating intake filter incl. 10m hose"Rainwater" labeling setConnection setClamp
Rainwater Manager Home & Garden U 1.1 (automatic) - expansion package
Details Fully automatic rainwater control unit. The "U 1.1" home and garden expansion package for your existing rainwater storage tank works with a clear water pressure pump. Advantages of the system No pump noise inside the house. The automatic control unit manages the water supply to all consumers automatically and reliably. If there is no rainwater in the tank during prolonged dry spells, it is immediately filled with potable water. There is always enough water available. When the tank fills with rainwater, the solenoid valve closes again. Technical Data Weight: 35.5 kg Flow rate: 4.5 m³/h Max. working pressure: 4.6 bar Rated power: 750 W Voltage: 230 V Frequency: 50 Hz Connections: 1
Tank for the GTN 6&7 and GRM 6&7 drinking water make-up modules
Drinking water replenishment tank in gray, including a float valve, inlet plate, and screw connectionsThe effective usable volume of the tank is approx. 6 liters With emergency overflow (free outlet)Spare part for the manual drinking water replenishment modules GTN / GRM 6 or the automatic drinking water replenishment modules GTN / GRM 7