The Department of Energy proposed an amendment to regulations on water fixtures. The Energy Policy and Conservation Act of 1992 declared a maximum water threshold for showerheads of 2.5 gallons per minute

Trump previously complained about low flow toilets that require one to flush “10 to 15 times,” directing the EPA to investigate.

Market Watch – Trump wants ‘perfect’ hair from stronger water flow in the shower — his Energy Department delivers 
Miami Herald – Trump wants better water flow in his shower. Here’s what that means for you