Super Soaker Central

I ordered the Hydro Blitz back in 2007, and i haven't used it that often, and now theres a problem.

The trigger is free, and it sticks, and when I go to pump it, the hydro blitz will automatically shoot and pulse, any ideas of what it might be before I disassemble it?

You may need to lubricate the valves inside. Use a silicone based lubricant and make sure it's safe for plastics and rubber.