Abstract: An apparatus is disclosed for obtaining inhibitively active "I" water and stimulatively activated "S" water which comprises:a parallelipipedic column having an open top;a support for said column;a cover closing said top of said column;at least one electrode assembly in said column and including:a pair of spaced apart mutually parallel porous membranes defining between inner surfaces thereof a supply space receiving water to be separated into inhibitively activated "I" water and stimulatively activated "S" water,respective porous electrodes spaced from outer surfaces of said membranes and parallel thereto, anda respective spacer between each of said electrodes and the respective outer surface whereby water flows outwardly from said supply space through said membranes and said electrodes;means for electrically connecting one of said electrodes as a positive electrode and the other of said electrodes as a negative electrode;means in said column for forming a first storage space adjacent said positive electrode f