How much electricity does the AquaTru Classic use? October 11, 2023 20:43 Follow When the AquaTru Classic is plugged in, it uses about 30 watts of electricity. Related articles What is the power rating for the AquaTru Classic? What is the idle power draw of the AquaTru Classic? I'm going on vacation. Is there anything we need to do to the AquaTru or AquaTru Connect countertop unit or filters? What does it cost in electricity to run AquaTru or AquaTru Connect countertop purifier? What is "Waste Water"?