Culligan Medallist Plus Sulfur-OX3, Owner'S Manual

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Water Quality
Verify that raw water hydrogen sulfide, pH, and alkalinity levels are within recommended limits.
Hydrogen Sulfide
Hydrogen Sulfide usually occurs naturally in well water as a dissolved gas. It is typically the result
of organic decomposition. It has a characteristic “rotten egg” odor and can usually be noticed at a
concentration above .50 ppm. In some cases hydrogen sulfide can be caused by Sulfate Reducing
Bacteria (SRB). This system is not designed to treat hydrogen sulfide caused by SRB. The Culligan
Analytical Laboratory can test for both of these contaminants.
Principles of Operation - Sulfur-OX3 Aeration System
The Culligan Sulfur-OX3 system utilizes the principle of oxidation to convert hydrogen sulfide to
sulfate or a filterable particle, resulting in the reduction of hydrogen sulfide odor. The process is
accomplished by water entering the filter tank being immediately exposed to an “airhead” at the top
of the filter tank to begin the oxidation process. The filter media acts a catalyst to help complete the
oxidation reaction and retain precipitated particles.
Periodic backwashing purges the accumulated particles from the filter tank and reclassifies the media
bed. After the backwash cycle the Sulfur-OX3 control valve replenishes the airhead in the filter tank
during the “Air Draw” cycle. During this cycle Air is educted into the filter tank in sufficient volume for the
required airhead. During the “Rinse” cycle the air charge is compressed and stored within the filter tank
and the filter media is rinsed prior to the system returning to the service cycle.
CAUTION! Do not use where the water is microbiologically unsafe or with water of
unknown quality without adequate disinfection before or after the unit.
Pressure - Although the system is designed and tested to operate at a maximum pressure of 60
psi, it is not expected that the system should be exposed to such pressure for extended operation.
Culligan recommends following the IAPMO Uniform Plumbing code section 806.2 by installing a
Pressure Regulating Valve if the water pressure is greater than 60 psi. Operating on pressures
above the UPC for extended periods of time can increase the service frequency and failure of
replacement parts. On a private water system, make sure the minimum pressure (when the pump
starts) is greater than 20 psi (140 kPa).
CAUTION! The use of a pressure reducing valve may limit the flow of water
in the household.
Temperature - Do not install the unit where it might freeze, or next to a water heater or furnace or in
direct sunlight. Outdoor installations require the use of the Outdoor Sulfur-OX3 filter system. Indoor
systems installed outdoors will void the warranty and UL certification.
Operating Conditions
The hydrogen sulfide limit listed below reflects the maximum limit that was tested without
any interference from other contaminants in the influent water.
In reality, however, we know that other contaminants may be present that could limit the filter’s
ability to remove hydrogen sulfide. In some cases, individual sellers of this equipment have had
success removing other concentrations of contaminants such as ferrous iron. If you are considering
the installation of this system for the removal hydrogen sulfide and iron is present we recommend
that you consult Culligan for proper application.
This system should not be used for the treatment of odors caused by sulfate reducing bacteria (SRB).
Application
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01035157 C 10/20