7366546 (Rev. B 1/24/18)
Systems tested and certified by the Water Quality
Association against CSA B483.1.
Systems tested and certified by NSF International
against NSF/ANSI Standard 44
for hardness reduction and efficiency,
and certified to NSF/ANSI Standard 372.
Installation and Operation Manual
If you have any questions or concerns when
installing, operating or maintaining your water
softener, call our toll free number:
1-800-972-0135
or visit www.northstarwater.com
When you call, please be prepared to provide
the model and serial number of your product,
found on the rating decal, located on the back
of the controller top cover.
Manufactured and warranted by
North Star Water Treatment Systems
1890 Woodlane Drive
Woodbury, MN 55125
Designed, Engineered &
Assembled in the U.S.A.
How to install, operate
and maintain your Demand
Controlled Water Softener
Models NST30ED
NST45ED1
NST70ED1
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