Preheat the oven to 325°F and adjust the oven racks to make room for the roasting pan.
Set the roasting rack in the pan and pour the water into the bottom of the shallow pan. Place turkey breast side up on the rack. Cover the pan with foil and seal around the rim.
Heat the turkey for 2 to 3 hours or until the internal temperature reaches 165°F.
Remove the turkey from the oven and let it rest 15 - 20 minutes to redistribute the juices before carving.