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Application & Operation
It is helpful to understand how your Culligan® Smart HE Water Filter functions and know its capabilities and limitations�
The following section provides a brief explanation of how your Culligan filter system operates and the future anticipated
service requirements to keep your system functioning efficiently and effectively�
Cullar
®
Filter
Smart HE Filters with Cullar D+ activated carbon media can reduce chlorine and associated tastes and odors�
Some other tastes and odors associated with naturally occurring organics may also be removed� Cullar D+ media
can temporarily reduce hydrogen sulfide levels but if hydrogen sulfide is constantly present in the water an odor
reduction system specifically designed for hydrogen sulfide reduction is necessary� Whenever the cause of an
objectionable taste or odor has not been identified further water testing is required� Cullar D+ media should not
be used with water that is of unknown microbiologically quality, is unsafe or contains nuisance bacteria without
adequate chemical disinfection with chlorine prior to the Cullar filter system� Cullar D+ filters only require automatic
reconditioning cycles to maintain system effectiveness� The Cullar D+ filter media can last for several years in
many applications but will eventually need replacement by your local Culligan dealer when it loses its ability to
satisfactorily reduce chlorine and its associated taste and odor�
Filtr-Cleer
®
Smart HE Filtr-Cleer Water Filters use multi-layered media capable of reducing particulate matter down to
15-microns in particle size� The stratified layers of progressively finer filter media allow filtration through the entire
depth of the media bed� This method of filtration minimizes the pressure loss associated with filters that use only
one grade of filter media� The Filtr-Cleer will not effectively remove colloidal matter and turbidity below the micron
rating, color caused by organics or dissolved solids�
Common applications follow:
• Reduction of suspended matter in the water�
• Reduction of particulate matter, such as clay, mud, and fine sediment�
• Prefiltration to remove oxidized iron prior to a water softening system�
• Reduction of light sand and sediments�
• After a retention tank when a Cul-Cleer® system with chemical feed is used for oxidation, coagulation, or flocculation�
Filtr-Cleer filters only require automatic reconditioning cycles to maintain effectiveness� The Filtr-Cleer media can last for
several years in most applications� If pressure loss increases over time and can’t be resolved by a reconditioning cycle
the filter media may need replacement by your local Culligan dealer�
Cullneu
®
Filter
Smart HE Water Filters with Cullneu Media can neutralize acidic water caused by low pH levels� Smart HE Filters can be
used on water with a pH level from 5�2 to 6�8� Low pH levels are primarily caused by carbon dioxide in the water which
forms carbonic acid� Carbonic acid can corrode copper piping resulting in blue/green staining, pipe damage and pin-hole
leaks� Other metals in the plumbing system can also be corroded and dissolved including brass, lead and iron�
Cullneu media is a high-purity form of calcium carbonate that reacts with carbonic acid in the water to convert it to
bicarbonate alkalinity� This increases the pH and alkalinity level of the water and reduces the potential for corrosion� If
the pH level is between 5�0 and 6�0 then one part of Cullneu C media (magnesium oxide) should be mixed with 5 parts
of Cullneu media to provide additional neutralizing capability� Cullneu media is a sacrificial mineral and will dissolve into
the water over time� During the neutralization process some hardness is also added to the water� Cullneu filters perform
automatic reconditioning cycles to maintain effectiveness� Since Cullneu media is consumed in the neutralization
process the media level in the filter tank will need to be periodically replenished by your Culligan dealer to ensure the
proper level of pH elevation�
Application & Operation
