Adjusting a toilet float is a simple fix that can resolve issues like a constantly running toilet or improper water levels in the tank. The float controls the water level by signaling the fill valve to stop when the tank is full. To adjust it, first, remove the toilet tank lid and locate the float—either a ball float or a cylindrical float attached to the fill valve. For a ball float, gently bend the metal arm downward to lower the water level or upward to raise it. For a cylindrical float, adjust the height by turning the adjustment screw or sliding the float up or down on the fill valve. Once adjusted, flush the toilet to ensure the water stops at the correct level.
