WASHINGTON (AP) — The Trump Administration wants to change the definition of a showerhead to let more water flow, addressing a pet peeve of the president who complains he isn't getting wet enough.

Publicly talking about the need to keep his hair "perfect," President Donald Trump has made increasing water flow and dialing back long held appliance conservation standards — from light bulbs to toilets to dishwashers — a personal issue.

But consumer and conservation groups said the Department of Energy's proposed loosening of a 28-year-old energy law that includes appliance standards is silly, unne...