How do you adjust the anti siphon on a fluidmaster 400a?

How do you adjust the anti siphon on a fluidmaster 400a? To adjust this type of valve, you simply turn an adjustment screw located on the top of the valve. To raise the water level, turn the adjustment screw clockwise; to lower the water level, turn the screw counterclockwise. How do you adjust the float … Continue reading How do you adjust the anti siphon on a fluidmaster 400a?