Hopefully there's a bladder in there that can be cleaned.
From a report on VeloNews:
The Shivís Camelbak-style bladder, called the Fuelselage, is hidden in the head tube and down tube. The bladder slides into the frame through the top tube directly behind the stem. Itís sealed with a rubber stopper that can be removed to refill the bladder on the go. The hose pops out of the frame behind the stem and lays onto the aerobar extensions. Specialized cleverly placed a magnet in the valve and a matching magnet in a strap that can be positioned anywhere on the bike to hold the hose and keep it from flopping around. Two valves are available, one is a bite valve and the second is an upturned opening without any seal. The bladder holds a little more than 20 ounces of fluid, depending on frame size, and can be removed from the bike to be cleaned.