Sitemap
- Products
- Wastewater Treatment
- Stormwater Attenuation
- Rainwater Harvesting
- Product advisor tanks
- All about rainwater harvesting
- Questions and Answers
- System Design home and garden
- System Design garden
- Lexicon
- Activated sludge
- Adsorption process
- Ammonium (NH4-N)
- Anti-vortex plate
- Average flow rate
- Backfill material
- Backflow level
- Biological active soil
- Biological cleaning stage
- Biological oxygen demand (BOD5)
- Calmed inlet
- Chlorine resistance
- Cistern
- Cleaning opening
- Coalescence unit
- COD (chemical oxygen demand)
- Connecting sewer
- Contamination of rainwater
- Denitrification
- Design rainwater gain
- Discharge head
- Drain trap
- Drainage
- Drinking water
- DWA A-117 worksheet
- Effective volume
- Empty conduit
- Empty conduit closure
- External switch cabinet
- Extinguishing water above-floor
- Extinguishing water under-floor
- Extinguishing water usable volume
- Federal Water Resources Act
- Filter
- Fine reversible flow filter
- Floating discharge
- French drain infiltration
- Frost protection
- Grease trap
- Grey water
- Ground water
- Harvest coefficient
- Heavy metals
- Heavy rainfall
- Height difference
- High-grade material
- Infiltration
- Infiltration basin
- Interior switch cabinet
- Irrigation
- Leachate
- Light liquid separator
- Load classes (EN 124)
- Local infiltration system
- Mains water backfeed
- Maximum flow rate
- Mean highest ground water level
- Minimum fall
- Minimum water volume
- Nitrate (NO3)
- Nominal diameter (ND, Nominal Diameter)
- Nominal pressure
- Operating pressure
- Overflow siphon
- Passage
- Phosphates (P)
- Pipeline fall
- Precipitation
- Precipitation depth
- Preliminary sedimentation
- Pressure boosting system
- Private water supply
- Process water
- Process water demand
- Process water network
- Pump characteristic curve
- Quality assurance
- Rain downpipe / downspout
- Rainwater
- Rainwater centre
- Rainwater containment
- Rainwater harvesting
- Rainwater infiltration
- Rainwater management
- Rainwater pipe
- Rainwater tank
- Rainwater treatment
- Receiving water courses
- Replenishing / system control
- Retention
- Retention cistern
- Retention volume
- Rodent guard
- Roof runoff water
- Runoff coefficient
- SBR process
- Sealed surfaces
- Sediment
- Sedimentation
- Separation process
- Separators
- Septic tank
- Sludge trap
- Soil permeability
- Storage coefficient
- Substrate filter
- Suction pipe
- Surface water
- Suspended solids (SS)
- Swale infiltration
- Swale – French drain infiltration
- Throttle (dynamic)
- Throttle (static)
- Throttled outflow discharge qDr in l/(sxha)
- Throttled outflow QDr in l/s
- Underground tank
- Utility water
- Vent pipe
- Wastewater
- Wastewater fee
- Water cycle
- Water hardness
- Tanks underground
- Rainwater tank Carat
- Rainwater flat tank Platin
- Rainwater tank Herkules
- Flat tank 1000 l
- Water extraction
- Filter
- Universal-Filter 3 internal
- Universal-Filter 3 XL internal
- Optimax-Pro Filter internal
- Optimax-Pro Filter XL internal
- Minimax-Pro Filter internal
- Optimax-Industrial Filter external
- Universal-Industrial Filter 3 external
- Optimax-Filter external
- Minimax-Filter external
- Universal-Filter 3 external
- Optimax XXL external filter
- Pot filter
- Controls | pumps
- Water Neutrality
- Combined Rainwater & Stormwater Systems
- All about retention
- Detention cisterns
- Retention cisterns
- Retention with Storage Modules
- Choke drain shaft
- Vortex flow control shaft
- Filter
- References
- Potable Water Tanks
- Firefighting Tanks
- Water Butts
- Product advisor stylish tanks
- All about rainwater harvesting
- Tanks overground (design)
- Tanks overground (classic)
- Rainwater tanks
- Downpipe filter
- Composters
- Horticulture & Viticulture
- Drums, Containers & Tanks
- Download Centre
- Knowledge Hub
- Blog
- What Cleaning Products Can You Use in You Have a Septic Tank?
- Nutrient Neutrality Under the Spotlight: Housing Crisis vs. Environmental Concerns
- Making SuDS Mandatory, What Does That Mean For The UK Construction Industry
- Drought in Europe
- Water Saving Week 2023
- What Is The Difference Between Greywater Recycling and Rainwater Harvesting?
- Is Rainwater Harvesting Illegal?
- What is a Rainwater Harvesting System?
- How can floods affect groundwater levels?
- Wastewater treatment systems must be serviced & maintained, but by who?
- How much does a cesspool typically cost?
- How do I know if my septic tank or treatment plant needs emptying?
- How much does a wastewater treatment system cost?
- What can go into a septic tank?
- What are the different types of flood defence systems in the UK?
- How do you size a sewage treatment plant?
- Is rainwater safe to drink in the UK?
- Will a septic tank work without power?
- What are the typical problems with a wastewater treatment system?
- What Can You Use Harvested Rainwater For?
- How much does a septic tank typically cost?
- What are typical problems with a stormwater attenuation tank?
- How much does a rainwater harvesting tank typically cost?
- What can you put into a sewage treatment plant?
- Fighting Fires
- Wastewater treatment FAQs
- Rainwater harvesting FAQs
- Stormwater management FAQs
- Case Studies
- Blog
- Sustainability
- About GRAF
- Shop
- GRAF TV
- Reduce your mains water usage by upto 50% | GRAF
- Wastewater Treatment Solution - oneAdvanced System 500 PE | GRAF
- Installation of a rainwater harvesting system | GRAF
- Nominated - German raw material efficiency award 2018
- Flat Tank Platin XXL up to 65,000 l
- Save up to 80% of freight costs with EcoBloc light
- Installation and benefits Platin flat rainwater tank
- How do I access water for my garden?
- What happens when my tank is empty?
- Rainwater harvesting system maintenance
- Stormwater Management EcoBloc System
- Wastewater treatment system one2clean - smart and simple!
- EcoSmart - the plug & play feed console
- Rainwater for the washing machine
- Operating and installing a rainwater harvesting system
- Retention Cisterns Plus
- Assembly of Carat S underground tank
- Carat S save up to 80% of freight costs
- GRAF Antique Amphora
- Installation of the Speedy downpipe filter
- How does a downpipe filter work?
- Function of the SBR wastewater treatment system oneAdvanced
- Presenting the Carat septic tank
- Light fluid separator Diamant
- Grease separator Diamant
- Infiltration tunnel Advantages and Functionality
- Stormwater Management with the GRAF EcoBloc Inspect
- Advantages and installation of the ECO-King from GARANTIA
- Advantages and installation of the Thermo-Star
- Advantages and installation of the Thermo-King
- Barrel round from GRAF
- Multi-purpose container square of GRAF
- Barrel oval from GRAF
- Optimax XXL external filter
- Contact us