This paper describes the influence of the transients and corrective additives on the distribution of loosely bonded forms of solid-phase corrosion products between the equipment surfaces and the primary coolant of a naval reactor plant. It is shown that the concentration of loosely bonded corrosion products increa ses by tenfold during the transient, and the feeding of corrective additives allows a several-fold reduction in the rate of their resedimentation on the internal surfaces of equipment, and as a consequence, improvement of corrosion product removal efficiency by cleanup filters. The proposed solutions allow removal of up to 70% of loosely bonded corrosion products from the coolant using standard filters.