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Posted by Harold hydronicnetwork.net on May 29, 2002 at 16:03:00:
In Reply to: Silica deposits in boiler / testing feedwater posted by ROY DE HAAN on May 29, 2002 at 13:19:47:
http://www.awsl.com/Boilerwater.htm
http://www.osmonics.com/products/Page227.htm
http://www.hach.com/Spec/MultiParam_BoilerCoolingWtr.htm