The Laboratory Charge Analyzer (LCA) is an essential coagulation optimization tool for the water treatment professional. The LCA allows the user to determine the ideal coagulant dosage needed to achieve optimum NTU and TOC reduction in less than 5 minutes typically. The LCA can also be used to determine the dosage rate of additives like lime or caustic when used to raise coagulation pH of low alkalinity waters. The larger sample size capability of the LCA allows the user to accurately titrate samples using undiluted coagulant, which is a very important feature when working with highly reactive coagulants like PACl or ACH. Options for pH measurement and auto-titration are also available.