Rainwater Harvesting
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What is Rainwater Harvesting?
Rainwater harvesting is a way of saving the rainwater which would normally flow off a roof and down the drain, and using it as piped water to flush toilets and for the garden watering, yard washdown, vehicle and car washing, and even for your washing machine, instead of using expensive treated drinking (potable) water.
Columbus rainwater harvesting tanks from Graf Garantia
Columbus rainwater underground tank 3700 litre for pedestrian loading
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank Columbus with tank dome Ø 60
cm and 4 lip seals DN 100
• Inclusive telescopic dome shaft with adjustable length from 22
to 70 cm, Ø 60 cm, and PE-lid double-walled with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 80 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
length width height height total weight
244 cm 165 cm 158 cm 195 cm 140 kg
Columbus rainwater underground tank 4500 litre for pedestrian loading
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank Columbus with tank dome Ø 60
cm and 4 lip seals DN 100
• Inclusive telescopic dome shaft with adjustable length from 22
to 70 cm, Ø 60 cm, and PE-lid double-walled with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 80 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
length width height height total weight
244 cm 184 cm 177 cm 214 cm 180 kg
Columbus rainwater underground tank, 6500 litre for pedestrian loading
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank Columbus with tank dome Ø 60
cm and 4 lip seals DN 100
• Inclusive telescopic dome shaft with adjustable length from 22
to 70 cm, Ø 60 cm, and PE-lid double-walled with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 80 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
length width height height total
244 cm 222 cm 213 cm 250 cm
Columbus rainwater underground tank, 9000 litre for pedestrian loading (2 tanks)
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank Columbus with tank dome Ø 60
cm and 4 lip seals DN 100
• Inclusive telescopic dome shaft with adjustable length from 22
to 70 cm, Ø 60 cm, and PE-lid double-walled with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 80 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
2 x 4500 litre tanks
length width height height total weight
244 cm 184 cm 177 cm 214 cm 180 kg
Lilo 1500 litre flat rainwater tank from Graf Garantia. Rainwater harvesting storage
The tank is the easiest to install on the market!
• Quick installation.
• Moving vehicles can be = 2.2 T.
• Fitting into the water table as possible.
• Above ground installation possible (crawl)
• Low depth of burial and excavation reduced saves time and money!
1500 l Lilo
length (L) width (B) height (H1) total height (H2) weight
210 cm 125 cm 70 cm 101.50 cm 80 kg
Lilo 3000 litre flat rainwater tank from Graf Garantia. Rainwater harvesting storage
The tank is the easiest to install on the market!
• Quick installation.
• Moving vehicles can be = 2.2 T.
• Fitting into the water table as possible.
• Above ground installation possible (crawl)
• Low depth of burial and excavation reduced saves time and money!
3000 L Lilo
length (L) width (B) height (H1) total height (H2) weight
245 cm 210 cm 73.50 cm 105 cm 170 kg
Lilo 5000 litre flat rainwater tank from Graf Garantia. Rainwater
harvesting storage
The tank is the easiest to install on the market!
• Quick installation.
• Moving vehicles can be = 2.2 T.
• Fitting into the water table as possible.
• Above ground installation possible (crawl)
• Low depth of burial and excavation reduced saves time and money!
5000 L Lilo
length (L) width (B) height (H1) total height (H2) weight
289 cm 230 cm 93 cm 126.50 cm 240kg
Cristall rainwater underground tank 1600 litres for pedestrian loading
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank with tank dome Ø 60 cm and 1
lip seal DN 100.
• Inclusive telescopic dome shaft, with adjustable length from 47
to 95 cm, Ø 60 cm with 3 lip seals DN 100 and PE-lid double-walled
with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 50 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
length width height height total weight
210 cm 105 cm 112 cm 122 cm 65 kg
Cristall rainwater underground tank 2650 litres for pedestrian loading
Rainwater harvesting from the Graf Garantia range of one piece tanks
• Monolithic rainwater tank with tank dome Ø 60 cm and 1
lip seal DN 100.
• Inclusive telescopic dome shaft, with adjustable length from 47
to 95 cm, Ø 60 cm with 3 lip seals DN 100 and PE-lid double-walled
with childproof protection.
• Only one cover visible in the garden as the filter technology
is integrated in the tank.
• Groundwater stable up to 50 cm from the tank bottom part.
• Pre-drilled lip seals for easy and safe installation.
• Simple installation of overflow and ductwork.
• Can be expanded at will.
length width height height total weight
210 cm 130 cm 140 cm 150 cm 100 kg
Rainwater Harvesting filters
Garantia Graf SUPRA-Filter internal with straight outlet, rainwater filter
• Rainwater harvesting from the Graf Garantia
•
• Over 95% water yield
• 0,35 mm mesh
• Suitable for roof surfaces up to 350 m²
• Connections DN 100
Garantia Graf SUPRA-Filter internal with offset outlet, rainwater filter
• Rainwater harvesting from the Graf Garantia range
• Over 95% water yield
• Only 80 mm height offset between inlet and outlet
• 0,35 mm mesh
• Suitable for roof surfaces up to 350 m²
• Connections DN 100
Garantia Graf pot filter
Pot filter
• 100% water yield
• For ground level installation outside the tank
• Suitable for garden irrigation or as pre-filter for infiltration
or pond systems.
• Connections DN 100
Garantia Graf underground fine filter
Rainwater filters
The rainwater is firstly cleaned by a patented filter system. The cleaned
water flows into the tank and dirt particles are rinsed into the channel
with a small amount of residual water. GARANTIA supplies various filter
systems for every installation situation
Underground fine filter
Large, removable sieve basket with handle
• For roof surfaces up to max. 300 m²
• Height 800 mm, cuttable
• Connections DN 100/150
• Requires regular servicing
SUPRA-Filter External rainwater harvesting filter from Graf Garantia
Rainwater harvesting from the Graf Garantia range of one piece tanks
SUPRA-Filter External
Over 95% water yield
Adjustable installation depth from 485 to 970 mm
0,35 mm mesh
Rainwater Harvesting management systems
Graf Garantia Drinking water feeding module
The unit is supplied pre-assembled. The installation time is thus greatly
shortened and the costs reduced.
If there is rainwater in the tank, it will be pumped out to supply the
connected appliances (toilets, washing machine…) when needed. If
the tank is empty, drinking water is automatically provided from the integrated
intake container of the module. The intake container refills thanks to
a float valve system
• In accordance with DIN 1988.
• Mounting console made of stainless steel (not illustrated).
• 3-way valve.
• Floating switch with 20 m of connection cable.
• Highly reliable operating system.
• Integrated drinking water intake container with a volume of approx.
20 ltr.
• Easy installation and attractive design.
• High performance and particularly quiet centrifugal pump with
circuit breaker.
• Centrifugal pump
Delivery height: 38 m = 3,8 bar
Delivery rate: 3600 L/h
Motor performance: 0,66 KW
Suction length/-height: 12 m/3 m
• Float valve: feeds the empty tank with drinking water from the
mains water supply when needed.
• Emergency overflow DN 70.
Graf Garantia garden jet pump
Garden Jet pump
Performance data:
• Motor performance 0,7 KW
• max. delivery height 40 m
• max. pressure 4,0 bar
• max. delivery rate 3000 l/h
• max. suction height 8 m
• max. suction length 15 m
Graf Garantia Combi-submersible pump 1000
Combi-submersible pump 1000
Multiple applications:
• As suction pump when dry running
• As submersible pressure pump when submersed in water
• Integrated pressure and flow monitor
• Built-in electronic control unit managing its operation
Performance data:
• Motor performamnce 0,9 kW
• max. delivery height 36 m
• max. pressure 3,6 bar
• max. delivery rate 5600l/h
Rainwater harvesting gravity feed delivery package for loft siting, loft tank package
Rainwater harvesting from the Raincatcher range of quality products
The Raincatcher gravity feed delivery system has two inlets, one pumped
from the rainwater storage tank either above or below the ground with
a float control to provide rainwater on demand to the tank. The second
inlet is from the mains via a factory modified ball valve system. The
two inlets are set at different levels so that when there is a lack of
rainwater, the ball valve opens allowing the tank to be topped up from
the mains until the rainwater is replenished.
The complete system comes with :
• Loft tank and all fittings
• Quality stainless steel submersible pump
• Pump lifting cable
• Non branded Labelling kit
• 25 metre coil of black and green rainwater delivery pipe.
Tank size ; 620 x 620 x 940mm ( 21.6KG) with many other sizes available,
often at no additional cost.
Complies with BS8515:2009
Tank is fully WRAS approved
RainCatcher Automatic Pump Control Panel with Mains Water Backup.
Components
• Control unit
• Tundish
• Mains water back up valve
• Fixing hardware
• Float switch with 15 metres of cable and a plug
Graf Garantia digital level display rainwater harvesting display module
Digital fill level display, 20 m cable, sensor, connection to the mains supply, instruction manual
Digital fill level display with drinking water feeding functionAutomatically
feeds drinking water from the mains into the empty tank in case of drought.
Integrated water level indicator and dry-running protection. Includes
a 20m data cable, a sensor and a connection to the mains water