Nalco water treatment control panel (Boiler House). This ensured that the correct amount of chemicals was added to water for the heating and chilled water system, as well as the cooling towers I think.
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See full size image Caption: Nalco water treatment control panel Description: Nalco water treatment control panel (Boiler House). This ensured that the correct amount of chemicals was added to water for the heating and chilled water system, as well as the cooling towers I think. Alt text: Nalco water treatment control panel Image credit: Gary Tull Photo subject date: 18/08/2010 |