IMPA:
GC is a concentrated alkaline liquid. It is used to adjust boiler water P. Alkalinity and pH. Used in conjunction with ADJUNCT B, GC prevents the formation of scale deposits. GC concentrated alkaline liquid can also be used as a neutralizing agent following acid cleaning. GC concentrated alkaline liquid is available in 25-liter containers (PCN 0007402). Keep from freezing.
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Dosage, Testing and Control
The boiler water daily alkalinity and/or pH test result determines the necessary dosage. For details on testing procedures, refer to the appropriate control and dosage chart or contact your local Drew Marine representative.
Feed Points
Dose alone or with ADJUNCT B phosphate boiler water treatment by diluting with condensate and feed directly to the steam drum (below water level) using a bypass pot feeder. For low-pressure boilers, GC liquid may be dosed to the hotwell or condensate return tank, although this is not the preferred method.
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