Rainwater Harvesting Systems – Sustainable Solutions for Homes & Gardens
With GreenLife ready-to-connect rainwater harvesting systems, you can use rainwater efficiently and sustainably both indoors and outdoors. Whether for garden irrigation, toilet flushing, or supplying a washing machine, our systems include everything required for safe, reliable, and hygienic rainwater use.
Depending on the application, the systems can be equipped with submersible or surface pumps, high-performance filtration technology, and automatic mains water top-up systems. Designed for ease of installation and long-term reliability, GreenLife rainwater harvesting systems are available in a variety of sizes to suit new-build projects, renovations, and retrofit installations.
Collect, filter, store, and reuse rainwater intelligently with GreenLife – for greater sustainability, lower water costs, and increased independence from mains water supplies.
Garden system AKTION with 4200 l flat tank
Rainwater harvesting system for the garden: “AKTION” garden system with a 4,200-liter rainwater tank Easy-to-install complete system for garden irrigation Our “AKTION” rainwater harvesting system is an all-inclusive package featuring a practical flat tank for easy installation underground. The high-quality rainwater tank is made of eco-friendly polyethylene (PE) and is 100% recyclable. The ready-to-connect complete set includes everything from the rainwater cistern to the submersible pressure pump—all the small and large components you need for rainwater harvesting in your garden. Collect precious rainwater in the underground rainwater tank during wetter times and use it for garden irrigation during drier periods. Do you have questions about the ideal tank size for your roof area and your individual usage? Feel free to use our rainwater planner. How does garden irrigation work with the "AKTION" garden system? Rainwater flows from the roof through the gutter grate (which acts as a pre-filter), then down the downspout and through the inlet surge arrester into the flat tank. The automatic submersible pressure pump located in the tank is connected to the water connection box via a hose that runs through a conduit. When the valve in the box is opened, the pump starts automatically. Closing the valve causes the submersible pressure pump to shut off on its own. You can install the water connection box wherever is convenient for you. When the cistern is full, the rainwater drains off via the overflow siphon. The barrier integrated here prevents small animals from entering. If there is a risk of frost, the pump must be disconnected from the power supply and the valve on the water connection box must remain open. You can find all further information under the DOWNLOADS tab and in the DOWNLOAD AREA.Who is the "AKTION" irrigation system suitable for? The complete set is suitable, on the one hand, for anyone who wants to keep the effort involved in installing their tank to a minimum. On the other hand, it is suitable for those who value the convenience of water withdrawal at a water connection box. Is the "AKTION" garden system drive-over? The flat tank is not drive-over in this form. However, upon request, all flat tanks can be retrofitted with our kit for car drive-over capability. The resulting wheel load is 600 kg per wheel—sufficient for standard cars and small vans. In this case, the cistern must have a soil cover of at least 60 centimeters. Where does the water from the overflow go when the tank is full? The excess rainwater can be discharged into the sewer system. However, this may incur fees. Additionally, the water does not return to the groundwater in a natural way when discharged this way. The most environmentally friendly option is (trough) infiltration through the soil surface. However, this is often not structurally feasible. With our infiltration elements, we offer a good way to allow overflowing water to infiltrate: Using infiltration cubes, infiltration blocks, or infiltration shafts, rainwater is guided through the soil back into the groundwater. Do I need a rainwater filter? This rainwater harvesting system generally does not require an additional rainwater filter. The gutter screen already provides sufficient coarse filtration. However, if you place particular importance on extra-clean water in your garden, you can install our fully biological Biovitor rainwater filter for flat tanks in all flat tanks. Installation and Maintenance Instructions for the 4,200-Liter Flat Tank Please follow the installation instructions (see also under “Downloads”): Before installing, connecting, and commissioning this product, read the instructions carefully and in their entirety, and observe all safety instructions. Failure to do so will void all warranty and guarantee claims. Additional features and notes Alternative equipment options are available for the tank; see “Accessories” below. The tank is UV-resistant and opaque. Possible connection sizes: DN 110 Our tank comes with 3 pre-installed DN 110 lip seals. Additional connection points are available and can be drilled and used as needed. The expansion dome is infinitely extendable from 380–580 mm and can be tilted up to 5° for optimal terrain adaptation. The tank has a 600 mm (access) opening. Do you have questions about this tank, its installation, or setup? Our customer service team is available to provide expert assistance. Please contact service@greenlife.de or our customer service at 0385 77 337 72 (weekdays 8 a.m.–4 p.m.). The entire system must be checked regularly for leaks, cleanliness, and stability. Maintenance of the entire system should be performed at intervals of approximately 5 years—every 10 years if a GreenLife Biovitor is used in accordance with the instructions. During this process, the system components must be cleaned and checked for proper function. Maintenance should be performed as follows:Empty the tank completelyRemove solid residues with a soft spatulaClean surfaces and internal components with waterCompletely remove dirt from the tankCheck that all internal components are securely fastened
Complete set for green space irrigation for up to 200 m² area
Fully automatic irrigation kit for efficient and easy garden watering Do you want to water your garden or lawn efficiently and according to its needs without lifting a finger? Once installed and programmed, our automatic irrigation kit with pop-up sprinklers waters your lawn easily and reliably exactly when it’s best for you. The kit is also easy to install. Water your garden while you sleep and save plenty of water in the process! Who is the green space irrigation kit suitable for? Our irrigation kit is suitable for a lawn or garden area of up to 500 m². It is particularly appealing to gardeners who do not want to or cannot actively manage the watering of their green spaces. The most sensible and environmentally friendly option is to draw the required water from a rainwater cistern using a water pump. However, drawing water from the mains is also possible. How does the fully automatic irrigation system work?The irrigation kit is easy to install with a little DIY skill. Please follow the included installation instructions. Installation essentially consists of three steps: placing the components in the ground, assembling the individual elements, and programming the controller. Decide where, when, and how much your lawn should be watered, then sit back and relax: From now on, our fully automatic garden irrigation kit takes over! The most important components of the garden irrigation system Control unit Control units and timers are the heart of every irrigation system. They offer a simple, flexible, and reliable solution for garden and lawn irrigation. Our controller with LCD display allows for quick and easy programming of different zones, start times, run times, and watering days. There is a separate start button for simple manual watering. The controller is dust- and waterproof. Wireless Rain Sensor When it rains and your lawn doesn’t need to be watered, the rain sensor comes into play. It sends a signal to the controller, which then stops or adjusts the watering. Valve Box The robust valve box provides optimal protection for your irrigation system’s valves against the elements, ensuring a long service life and safe operation. The spacious top access makes maintenance easier, while pre-punched openings for the pipes reduce installation time. An integrated slot allows the lid to be lifted easily. Beveled corners protect the lid from damage by lawn mowers. The box is also made from 100% recycled HDPE. Pop-up Sprinklers Our pop-up sprinklers offer a reliable solution for effective garden irrigation. Thanks to the strong stainless steel return spring, the pop-up mechanism retracts safely, while the simple adjustment mechanism allows for quick and precise alignment of the spray direction. A precise flushing system ensures that debris is kept out of all soil types. All components are accessible from above without the need for special tools. The robust housing made of UV-resistant plastic guarantees a long service life.
Complete system GRM 2.0
DetailsSystem for collecting clean rainwater for use in washing machines, garden irrigation, and toilet flushing. Rainwater is collected in an underground tank made of high-quality plastic, drawn in by a self-priming centrifugal pump, and pumped to the points of use. If there is a shortage of rainwater, a solenoid valve switches to a direct supply of drinking water.Scope of deliveryUnderground tank made of high-quality polyethyleneSliding dome with plastic safety cover (walkable up to 200 kg)Biovitor with inlet flow regulatorOverflow siphon with small animal protectionRainwater manager GRM2.0 with multi-stage self-priming centrifugal pump for drinking water replenishmentFloat switch with 20 m connection cable and adjustment weightLabeling materials
Complete system U 1.1
DetailsSystem for collecting clean rainwater for use in washing machines, garden irrigation, and toilet flushing. Rainwater is collected in an underground tank made of high-quality plastic and pumped to the draw-off points using a submersible pressure pump. If there is a shortage of rainwater, a solenoid valve switches over and the tank fills with potable water.Scope of deliveryUnderground tank made of high-quality polyethyleneSliding dome with safety cover (walkable up to 200 kg)Biovitor with inlet flow regulatorOverflow siphon with small animal protectionGUP 46 clear water pump with floating suction filterRainwater manager U1.1 for wall mounting for drinking water replenishmentFloat switch with 20 m connection cable and adjustment weightLabeling materials
Fixed garden
Garden Irrigation System: "fix" Garden System Easy-to-install complete system for garden irrigation Our "fix" garden system is an all-inclusive package with a practical flat tank for easy installation in the ground. The spout allows for simple and back-friendly water withdrawal. The ready-to-connect complete set includes all the components you need for easy garden irrigation. Do you have questions about the ideal tank size for your roof area and your individual usage? Feel free to use our rainwater planner. Scope of delivery 2,000-liter flat tank made of high-quality polyethylene, including pre-assembled DN 110* connectionsExpansion dome, telescopic, diameter DN 600 mmPlastic safety cover (walkable up to 200 kg) with "Flower of Life" embossing** Inlet flow regulator (installed) Garden water spigot with faucet (chrome-plated) 20.4 meters of gutter grating with filter function 10-meter rainwater pressure hose GAP X120 submersible pressure pump, including side suction, integrated automatic switch, dry-run protection, 15-meter connection cable, and additional accessoriesRainwater labeling set15-year warranty on the underground tank in accordance with warranty terms * Three connections for inlet, overflow, and supply line/empty pipe connection (rubber lip seal DN 110), e.g., KG pipe ** The slip-resistant pattern on the safety cover depicts the “Flower of Life”; it is a popular decorative element understood in many cultures as a symbol of cosmic order. How does garden irrigation work with the "fix" garden system? Rainwater flows from the roof through the gutter grate into the gutter and then via the downspout and the inlet surge arrester into the underground tank. (Multiple downspouts can also be connected.) The automatic submersible pressure pump located there is connected to the dispenser via a hose that runs through a conduit. When the faucet on the water dispenser is turned on, the pump starts automatically. When the faucet is turned off, the submersible pressure pump shuts off on its own. You can install the water dispenser wherever is convenient for you. When the cistern is full, the rainwater drains off via the overflow siphon. The integrated barrier prevents small animals from entering. If there is a risk of frost, the pump must be disconnected from the power supply. In addition, the water tap should remain open. You can find all further information in the download area. Who is the "fix" garden irrigation system suitable for? The complete set is suitable, on the one hand, for anyone who wants to keep the effort involved in installing their tank to a minimum. On the other hand, it is suitable for those who value the convenience of drawing water from a tap—for example, to fill a watering can. Is the "fix" garden system drive-over? The flat tank is not drive-over in this form. However, upon request, all flat tanks can be retrofitted with our kit for car drive-over capability. The resulting wheel load is 600 kg per wheel—which is sufficient for standard cars and small vans. In this case, however, the cistern must have a soil cover of at least 60 centimeters.Where does the water from the overflow go when the tank is full? The excess rainwater can be discharged into the sewer system. However, this incurs fees. Another disadvantage: The water does not return to the groundwater naturally. The most environmentally friendly option is (trough) infiltration through the soil surface. However, this is often not structurally feasible. With our infiltration elements, we offer a good way to allow overflowing water to infiltrate: Usinginfiltration shafts or infiltration cubes, rainwater is guided back into the groundwater through the soil. Do I need a rainwater filter? The complete garden irrigation set generally does not require a rainwater filter. However, if you place particular value on extra-clean water in your garden, you can install our fully biological Biovitor rainwater filter for flat tanks in all flat tanks. Important: Delivery Process Our underground tanks are always delivered by a freight carrier. If accessories are shipped separately, this is done via a parcel service. The freight carrier will contact you 1–2 business days before the actual delivery date to clarify final details. For this, we need your phone number (ideally a cell phone number). We generally deliver cisterns or larger products by truck. The truck is unloaded at the curb. Please note, however, that suitable equipment (e.g., a mini-excavator) must be available on-site to move the cistern to the installation location, or, depending on the size, 2–3 people must be available. Please refer to the “Technical Data” table for the specific cistern for the exact weight. In some cases, such as double or multi-tank systems, delivery may be made by semi-trailer truck. Therefore, please inform us immediately after placing your order if the desired delivery address is NOT accessible to a 40-ton truck. Otherwise, we cannot accommodate this during delivery! Please also note that no deliveries are made on Saturdays, Sundays, or holidays.
Garden quick
Garden Irrigation System: "Quick" Garden System Garden irrigation with a ground-level water outlet Our "quick" garden system easily supplies your garden with rainwater. The space-saving, at-ground-level water outlet, to which two hoses can be connected simultaneously, is particularly practical. The ready-to-connect complete set includes all the components you need for easy garden irrigation. Do you have questions about the ideal tank size for your roof area(s) and your individual usage? Feel free to use our rainwater planner. Scope of delivery: 1,000-liter underground tank / cistern made of high-quality polyethylene Plastic safety cover (walkable up to max. 200 kg) Inlet flow regulator (installed) Overflow siphon with animal protection (installed) Water connection box with click-in fittings 20.4 m gutter screen with filter function 10 m rainwater pressure hose GAP X120 clear water pressure pump with integrated automatic switch, dry-run protection, and 15 m connection cable Labeling materials 15-year warranty on the underground tank in accordance with warranty terms How does garden irrigation work with the "quick" garden system?Rainwater flows from the roof through the gutter grate into the gutter and then via the downspout and the inlet surge arrester into the underground rainwater tank. (Multiple downspouts can also be connected.) The automatic submersible pressure pump located there is connected to the water connection box via a hose that runs through a conduit. When the faucet in the box is opened, the pump starts automatically. Closing the faucet causes the submersible pressure pump to shut off on its own. When the cistern is full, the rainwater drains off via the overflow siphon. The barrier integrated here, in turn, prevents small animals from entering. In winter, the pump must be disconnected from the power supply. In addition, the water tap should remain open. You can find all further information in the download area. Who is the "quick" garden irrigation system suitable for? The complete set is particularly suitable for garden owners who prefer ground-level water extraction from a tap and also want two connection points. Is the "quick" garden system drive-over? The rainwater tank is not drive-over in this configuration. However, upon request, all cisterns with a capacity of 2,200 liters or more can be retrofitted with our kit for vehicle traffic. The resulting wheel load is 600 kg per wheel—which is sufficient for standard passenger cars and small vans. In this case, however, the cistern must be covered with at least 60 centimeters of soil. Where does the water from the overflow go when the tank is full? The excess rainwater can be discharged into the sewer system. However, this incurs fees. Another disadvantage: The water does not return to the groundwater naturally. A good alternative is infiltration shafts or infiltration cubes, which help guide the rainwater through the soil back into the groundwater. Do I need a rainwater filter? The complete garden irrigation set generally does not require an additional rainwater filter. However, if you place particular importance on extra-clean water in your garden, you can install our fully biological Biovitor rainwater filter in all cisterns with a capacity of 2,200 liters or more. Our in-tank filter is suitable for 1,000-liter underground tanks. Important: Delivery Process Our underground tanks are always delivered by a freight carrier. If accessories are shipped separately, this is done via a parcel service. The freight carrier will contact you 1–2 business days before the actual delivery date to clarify final details. For this, we need your phone number (ideally a cell phone number). We generally deliver cisterns or larger products by truck. Unloading of the truck takes place curbside. Please note, however, that for transporting the cistern to the installation site, suitable equipment (e.g., a mini-excavator) must be provided on-site, or depending on the size, 2–3 people must be available. Please refer to the “Technical Data” table for the exact weight of the respective cistern. In In individual cases, it may happen that, for example, double or multi-tank systems are delivered by a semi-trailer truck. Therefore, please inform us immediately after placing your order if the desired delivery address CANNOT be accessed by a 40-ton truck. Otherwise, we will not be able to accommodate this during delivery! Please also note that no deliveries are made on Saturdays, Sundays, and holidays.
Rainwater harvesting system / "BASIC" garden system
Compact Basic Garden Irrigation Kit A ready-to-connect complete package that includes everything you need for rainwater irrigation in your garden. Except for the portable suction pump, everything is already professionally pre-installed. The suction pump is located outside the rainwater tanks and can also be used flexibly elsewhere. Do you have questions about the ideal tank size for your roof area and your individual consumption? Feel free to use our rainwater planner. Scope of delivery 1,000-liter underground tank/cistern made of high-quality polyethylene Plastic safety cover (walkable up to max. 200 kg) Inlet flow regulator (installed) Overflow siphon with animal protection (installed) Water connection box with click-in fittings 20.4 m gutter grate with filter function Floating intake filter including backflow preventer 10 m rainwater pressure hose Self-priming jet centrifugal pump with hose connection Labeling materials 15-year warranty on the underground tank in accordance with warranty terms How does garden irrigation work with the "basic" garden system?Rainwater flows from the roof through the gutter grate into the gutter and then via the downspout and the inlet surge arrester into the underground tank. (Multiple downspouts can also be connected.) The automatic submersible pressure pump located there is connected via a hose, which runs through a conduit, to the water dispenser. When the faucet on the water dispenser is opened, the pump starts automatically. Closing the faucet causes the submersible pressure pump to shut off on its own. You can install the water dispenser wherever is convenient for you. When the cistern is full, the rainwater drains off via the overflow siphon. The barrier integrated here, in turn, prevents small animals from entering. In winter, the pump must be disconnected from the power supply. Additionally, the water tap should remain open. You can find all further information in the download areaWho is the "basic" irrigation system suitable for? The complete set is suitable, on the one hand, for anyone who wants to keep the effort involved in installing their tank to a minimum. On the other hand, it is suitable for those who value the convenience of drawing water from a tap—for example, to fill a watering can. Is the "basic" garden system drive-over? The underground tank is not drive-over in this form. However, upon request, all underground tanks with a capacity of 2,200 liters or more can be retrofitted with our vehicle-traffic-resistant kit. The resulting wheel load is 600 kg per wheel—which is sufficient for standard passenger cars and small vans. In this case, however, the cistern must have a soil cover of at least 60 centimeters.Where does the water from the overflow go when the tank is full? The excess rainwater can, on the one hand, be discharged into the sewer system. However, this incurs fees. Another disadvantage: The water does not return to the groundwater naturally. A good alternative is soakaway blocks, which help guide the rainwater through the soil back into the groundwater .Do I need a rainwater filter?The complete garden irrigation set generally does not require a rainwater filter. However, if you place particular importance on extra-clean water in your garden, you can install our fully biological Biovitor rainwater filter in all cisterns with a capacity of 2,200 liters or more. Our in-tank filter is suitable for 1,000-liter underground tanks. Important – Delivery Process: Our underground tanks are always delivered by a freight carrier. If accessories are shipped separately, this is done via a parcel service. The freight carrier will contact you 1–2 business days before the actual delivery date to clarify final details. For this, we need your phone number (ideally a cell phone number). We generally deliver cisterns or larger products by truck. The truck is unloaded at the curb. Please note, however, that suitable equipment (e.g., a mini-excavator) must be available on-site to transport the cistern to the installation location, or, depending on the size, 2–3 people must be available. Please refer to the “Technical Data” table for the specific cistern for the exact weight. In some cases, such as double or multi-tank systems, delivery may be made by semi-trailer truck. Therefore, please inform us immediately after placing your order if the desired delivery address is NOT accessible to a 40-ton truck. Otherwise, we cannot accommodate this during delivery!Please also note that no deliveries are made on Saturdays, Sundays, or holidays.