Turn the dial to the WATER DAYS position.
Press the arrow (>) button to scroll to the No Water Days at the bottom of the display. MO will be flashing. Use the arrow (>) button until the cursor is at the day of the week you wish to set as a No Water Day.
Press the minus (-) button to set this day as a no water day. The icon will illuminate over this day. Repeat steps 4 and 5 until all desired event day(s) are off.