NOVELTY - Optimizing (M1) hydrogen producing system involves producing hydrogen gas using hydrogen producing formulation containing aluminum hydroxide, copper and silver; and removing chemical substance that reduces the efficiency of the producing hydrogen gas.    USE - For optimizing efficiency of the hydrogen production system using various water sources such as seawater, municipal, gray water and other water sources to produce H2 and O2.    ADVANTAGE - The factors that optimize the efficiency of the hydrogen production system are sodium ion (Na+) removal, sediment removal, and filtration of the water. Sediment is able to build up during the hydrogen production reactions. The sediments are able to come from the metal ions and minerals from the water supply. Removal of the sediments, such as MgO and CaO, that build up in the reaction, prevent precipitation of the reacting chemical substance and/or prevent the clogging of the fluid transportation such that the efficiency of the hydrogen production system is optimized. The hydrogen production device generates hydrogen as a type of energy supply using environmentally non harmful chemicals and wasted heat. The removal of a chloride ion prevents the precipitation of silver, because silver chloride has a low solubility in water solution. The filtration removes unwanted ions and chemical substances, using ion exchange membrane and size exclusion membranes.    DETAILED DESCRIPTION - Optimizing (M1) hydrogen producing system involves producing hydrogen gas using hydrogen producing substance of formula Al(OH)x (I), copper and silver; and removing chemical substance that reduces the efficiency of the producing hydrogen gas.    x=1, 2, 3 or 4    INDEPENDENT CLAIMS are included for the following:    (1) making (M2) hydrogen generating system involving preparing a hydrogen generating catalyst containing aluminum, copper and silver; and applying a pulsed voltage to hydrogen generating catalyst; and    (2) a hydrogen producing system (S1) comprising hydrogen producing catalyst containing (I), copper, and silver; hydrogen generating voltage applied to the hydrogen producing catalyst to generate hydrogen gas; and catalyst regenerating device to regenerate the hydrogen producing catalyst to a chemical state generating the hydrogen gas when the hydrogen generating voltage is applied.