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Dictionary
The water treatment dictionary contains short encyclopedic definitions of terms, parameters, technologies and filtration components. Each term answers the question “What is it?” and explains its practical meaning. It is a quick knowledge base for comparing filters, reading water tests and choosing solutions for specific problems.
Search only short glossary definitions in this dictionary section.
A
- absolute filtration accuracy
- acid-neutralising filter media
- acrylamide in water
- activated carbon
- activated-carbon vessel
- active oxygen
- actual color
- adding salt
- adsorption on carbon
- adsorptive filter media
- advanced oxidation processes
- aeration compressor
- aggressive water
- air aspirator
- air gap tap
- air in the filter
- air injector
- algae in the pool
- alkaline water
- alkalinity
- alkalinity of water
- alkalizing cartridge
- aluminium in water
- ammonia in water
- ammonia removal
- ammonium nitrogen
- ammonium-removal filter media
- anion resin
- anthracite
- anti-algae preparation
- anti-scale filter
- antibacterial filter media
- antibiotics in water
- antimony in water
- antiscalant
- apparent color
- aquarium mineralizer
- aquarium water
- aquifer
- arsenic in water
- arsenic removal
- automatic air vent
- automatic anti-flood valve
- automatic control valve
- automatic filter
- automatic membrane rinsing
- automatic regeneration
B
- backwash
- backwash
- bacteria in water
- bacterial colonies
- bacterial endotoxins in water
- bacteriological examination
- bacteriophages in water
- ball valve
- bar
- barium in water
- bicarbonates in water
- Big Blue filter housing
- bioceramic insert
- biofilm in the installation
- Birm filter media
- bisphenol A in water
- bitter taste of water
- bituminous coal
- blending
- block activated carbon
- BOD
- boiler stone
- booster pump
- boron in water
- bottleless water dispenser
- BPA-free materials
- breakpoint chlorination
- brine
- brine control
- brine float
- brine grate
- brine overflow
- brine tank
- brine valve
- brine well
- bromates
- bromide in water
- brown water
- brown water in the pool
- bypass in the filter
- bypass valve
C
- cabinet water softener
- cadmium in water
- calcite
- calcium hardness in pool water
- calcium in water
- capillary membrane
- carbon block
- carbon filtration
- carbon insert
- carbon postfilter
- carbonate hardness
- casing pipe
- catalytic filter media
- cation exchange resin
- centering disc
- central filtration
- central water treatment
- ceramic insert
- chemical disinfection
- chemical membrane flushing
- chloramines
- chlorate in water
- chlorides
- chlorine dioxide
- chlorine reduction
- chlorine stabilizer
- chlorine tablets
- chlorite in water
- Clack valve
- clean water
- cleaning the filter housing
- clogging of cartridges
- Clostridium perfringens in water
- cloudy water
- co-current regeneration
- coagulation
- coconut coal
- COD
- coffee-machine water filter
- coliform bacteria
- colony count at 22°C
- colony count at 36°C
- color reduction
- combined chlorine in pool water
- concentrate
- connection tee
- constant hardness
- contact tank
- contact time
- control valve
- copper in water
- copper installation
- counter-current regeneration
- countertop water filter
- cross-flow filtration
- Cryptosporidium in water
- Crystal Right filter media
- CTO carbon block cartridge
- cyanobacteria in water
- cyanotoxins in water
- cyanurates
D
- daily production capacity
- dealkalization of water
- deep well
- Defeman filter media
- demineralization cartridge
- demineralization medium
- demineralized water
- deposits on the fittings
- descaling devices
- DHW circulation
- DI cartridge
- DI resin
- diaphragm hydrophore
- diaphragm recoil
- direct-flow RO system
- dirt separator
- dirt trap
- disinfection by-products
- disinfection of installations
- disk filter
- dissolved oxygen
- distilled water
- distribution pipe
- DOC in water
- dolomite
- dose of salt
- dosing pump
- DPD pool-water test
- drain clamp
- drain valve
- drinking water standard
- driven well
- dry RO membrane
- dry skin after bathing
- dry-run protection
- dug well
- duplex water softener
E
F
- faucet-mounted water filter
- filter before the softener
- filter behind the softener
- filter cartridge life indicator
- filter gravel
- filter housing
- filter housing O-ring
- filter housing wrench
- filter media
- filter sand
- filter sanitization
- filter water bottle
- filter-bed caking
- filter-bed channeling
- filter-bed expansion
- filter-bed height
- filter-bed rinsing
- filter-bed volume
- filter-media disinfection
- filter-media replacement
- filtration column
- filtration speed
- final filtration
- final rinse
- fine filtration
- first launch of the station
- flat gasket
- flocculation
- flow limiter
- flow resistance
- flow sensor
- fluorides
- flush valve
- flushing the installation
- foam insert
- four-way valve
- free chlorine
- free flow from RO tap
- French degrees
G
H
- haloacetic acids
- hard water
- hardness breakdown
- hardness measurement
- head calibration
- healthy water
- hexavalent chromium
- high chlorine in the pool
- high pH
- high pH in the pool
- high pressure switch
- high TDS
- high water conductivity
- hormones in water
- hydraulic bypass
- hydraulic load
- hydrogen sulfide in water
- hydrophore tank
I
- impregnated carbon
- impulse water meter
- in-line filter
- injector cleaning
- installation corrosion
- installation protection
- instantaneous performance
- ion exchange
- ion exchange capacity
- ion exchange resin
- ion-exchange resin cleaning
- ion-exchange resin regeneration
- ionic charge
- ionite
- iron bacteria
- iron in water
- iron oxidation
- iron removal filter
- iron removal insert
J
K
L
M
- magnesium in water
- manganese in water
- manganese removal filter
- manometer
- manual control valve
- maximum flow
- mechanical filtration
- mechanical impurities
- mechanical insert
- membrane biofouling
- membrane CIP cleaning
- membrane fouling
- membrane scaling
- mercury in water
- mesh filter
- metallic taste of water
- metered control valve
- mg CaCO3/l
- microbiological contamination
- microcystins in water
- microfiltration
- micron
- microplastics in water
- milky water in the pool
- mineralizer
- minerals in water
- minimum pressure
- mixed resin
- mixed-bed ion-exchange resin
- mixing valve
- mixing water
- monospheric filter media
- monospherical resin
- mud in the water
- multi-stage filtration
- multifunction water-treatment unit
- multifunctional filter media
N
- nanofiltration
- neutralising filter media
- nickel in water
- nitrate cartridge
- nitrate removal
- nitrate-removal filter media
- nitrates in water
- nitrifying bacteria
- nitrites in water
- no chlorine in the pool
- no water from osmosis
- NO2 in the aquarium
- NO3 in the aquarium
- nominal filtration accuracy
- nominal flow
- non-return valve
- NSF certification
- NSF/ANSI 372
- NSF/ANSI 42
- NSF/ANSI 53
- NSF/ANSI 58
- NTU turbidity
- number of bacteria
O
P
- peak performance
- permeate
- permeate pump
- permeate to effluent ratio
- permeate yield
- pesticides in water
- PEX installation
- PFAS in water
- PFOA in water
- PFOS in water
- pH
- pH measurement
- pH neutralization
- pH regulator minus
- pH regulator plus
- pH stabilization
- pharmaceutical residues in water
- phosphates in water
- physicochemical examination
- pleated insert
- POE
- polyphosphate insert
- polyphosphates
- polypropylene insert
- pool coagulant
- pool flocculant
- pool photometer
- pool sand filter
- postfilter
- potassium in water
- potassium permanganate
- POU
- ppm
- pre-filtration
- prefilter
- pressure cylinder
- pressure loss
- pressure reducer
- pressure switch for a water system
- process water
- Pseudomonas aeruginosa in water
- pumping water level
- Pyrolox filter media
- PZH hygienic certificate
Q
R
- radon in water
- raw water
- recovery RO
- refrigerator water filter
- regenerant
- regeneration cycle
- removal of heavy metals
- replacing cartridges
- residual hardness
- retentate
- reverse osmosis
- rinsed filter
- rinsing the cartridge
- rinsing the membrane
- RO membrane
- RO membrane housing
- RO membrane replacement
- RO power adapter
- RO prefilter
- RO pressure tank
- RO pump noise
- RO water for the aquarium
- RO/DI system
- rotameter
- rust in water
S
- safe drinking water
- safety valve
- Salmonella in water
- salt bridge in a softener
- salt consumption
- salt in water
- salt regeneration
- saltwater pool chlorinator
- salty water from the softener
- sample collection point
- sand in the water
- SDI
- secondary water pollution
- sediment at the bottom of the pool
- sediment from pipes
- sediment-carbon filter cartridge
- sedimentation filtration
- selection of treatment stations
- selenium in water
- self-cleaning filter
- service bypass
- service cycle
- sewage restrictor
- sheepskin coat for tea
- shock chlorination
- shower filter
- silica in water
- silver in filters
- Slim filter housing
- slippery water in the pool
- slow rinse
- smart filtered-water faucet
- sodium hypochlorite
- sodium in water
- softened water
- softener controller
- softener inspection
- softener regeneration too often
- softening insert
- specific resistance of water
- spin-down sediment filter
- spot filtration
- spot water treatment
- static water level
- stone in the kettle
- string insert
- strontium in water
- submersible well pump
- sulfides in water
- sulfur
- sulfur bacteria
- surface booster pump
- swimming pool water
T
- tableted salt
- tap water
- taste of water
- TDS
- TDS in the aquarium
- TDS measurement
- technical water
- temporary hardness
- temporary regeneration
- the smell of chlorine
- the smell of rotten eggs
- the smell of water
- thermal disinfection
- THM in water
- three-way tap
- time-clock control valve
- TOC in water
- total chlorine
- total manganese
- treated water
- Turbidex filter media
U
V
W
- washing-machine water filter
- water acidity
- water aeration
- water aerator
- water after disinfection
- water chlorination
- water color
- water connection
- water decarbonization
- water degassing
- water deionization
- water demineralization
- water desalination
- water distillation
- water filter jug
- water filtration
- water for babies
- water for batteries
- water for the coffee machine
- water for the iron
- water from the well after the rain
- water ionization
- water leak sensor
- water mineralization
- water ozonation
- water pressure drop
- water purification
- water remineralization
- water removal
- water removal
- water resistivity
- water sample collection
- water saturation index
- water softener
- water softening
- water stagnation
- water structuring
- water temperature
- water treatment
- well drawdown
- well gravel pack
- well pumping test
- well screen
- well water
- well water analysis
- well yield
- wellhead cap
- wet RO membrane
- white precipitate
- whole house filtration
- winter measure for the swimming pool
- working capacity of filter media
- working pressure
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