5 |
P a g e
Other Materials
•
Various pipe fittings
•
PTFE tape
Water Quality parameters
UV disinfection is extremely effective against microorganisms but only if the UV light can pass
through the water it needs to treat. This means that the quality of your water is very important
in order to ensure complete disinfection.
Treated water should be tested for at the least the parameters listed below. If the water exceeds
the listed parameters Calmag strongly recommends that appropriate pretreatment equipment
be installed (equipment required will depend on parameters being treated):
Hardness:
<120 ppm – if hardness level is 120 ppm or slightly below the quartz
sleeve must be cleaned periodically in order to ensure efficient UV
penetration; if above the water must be softened.
Iron (Fe):
<0.3 ppm
Manganese (Mn):
<0.05 ppm
Turbidity:
< 1 NTU
Tannins (organics):
<0.1 ppm
UVT (transmittance):
>85% (Please contact Calmag if water has a UVT that is less than
80% for pre-treatment recommendations)
You can have your water tested at a private analytical laboratory or by your local council. It
is always recommended to install pre-filtration of at least 5 microns prior to a CalUltra UV
disinfection system. The CalUltra 12 and CalUltra 22 models are already provided with a pre-
filter. For other models, please contact Calmag for the appropriate filter housing and cartridge.