The Electro-Chemically Activated (ECA) water technology and its capacity to produce distinct and differentiated energised water solutions was first described in the early 1950s. The technology was refined in the Moscow laboratory of Prof Bakhir et. al. and its near universal applications as a new generation disinfectant has flourished since the mid 1990s. Today, the ECA technology, as a safe and effective disinfectant and biofilm control remedy has gained global traction with multiple installations in high risk food, beverage factories and dental and medical institutions. Prior to the late 2000s, the definitive mechanisms of antimicrobial action of the ECA solutions had previously not been elucidated and reported on and this treatise on the ECA technology was collated to provide a benchmark of understanding to complement the burgeoning research efforts relating to the technology.