Our Closed System cleaning system has been specially developed to effectively remove deposit sludge / foulants from the system. It is a blend of specific chelating agents designed for removal of Iron Calcium and Magnesium based deposits from cooling water systems where it is not practical to remove the tower packing. It is found to be most effective in cleaning where deposition or oil contamination is suspected of reducing heat transfer or restricting flow available. Deposits are softened and solubilized as our cleaner penetrates the deposits and enhances the action of cooling water dispersants to slough off remaining deposits which are later removed during a blow down or draining. WT1153A - Closed System Chemical De-Scalant and WT1153B - Closed System Polymeric Dispersant to be used in Combination for treament.