Formulated specifically for leakage and recirculation circuits reintegrated from raw water or fixed hardness in circuits above 4.5 ° DH. It has the function of preventing the formation of salt scale by acting as a sequestrant and acting on solid particles (crystals, colloids, lime, etc.), Avoiding the continuous growth of crystals and therefore the formation of compact material facilitating the formation of incoherent fine sludge, easily removed by bleeding. Its action also applies to cooling circuits subjected to continuous chlorination. It contains a unique zinc corrosion inhibitor Zn