A.P.C.L- Water treatment at a Glance Water treatment Programme must begin with an objective statement of what is expected from the cooling water treatment. In manufacturing industry, the cooling water system must provide reliable production equipment cooling with maximum heat transfer efficiency. The following four basic requirements are derived from this objective. Minimize problems from corrosion, scale, deposition, and growth to obtain maximum efficiency. Implementation and control must be "do-able" with a minimum input of labor and money. Co