We offer two ways to clean a cooling tower/chiller. The first being a mechanical cleaning and the second being a chemical cleaning. At times, you may have to encompass both methods in order to accomplish the task at hand. Consult your water treatment rep. and have him assist you in determining the best procedure.
Chemical cleanings involve three distinct separate procedures. One being the use of a dispersant to loosen biomasses and get into difficult areas.. The second being the use of acid for severe scaling. The third is a disinfection for bacteria and Legionella prevention and elimination. You have to determine which method is best suited for your situation. You may have to use a combination of the three in some cases.