It works just fine when I'm using the Flash Flood by itself. But when I use the Aquapack, the reservoir caves in! So here's a step-by-step process of what happens. First, I fill up the FF tank. Then, I fill up the Aquapak tank and attach it to the Flash Flood. So then I start taking shots. After a while, all the water from the Aquapak is used up, but the FF tank is full. By now I've squeezed out exactly four FF shots. Then, as I'm almost done with the FF tank, I suddenly notice the whole side of the tank is inverted. The tank is pushed in on the inside.
So here's my theory. I must be creating a vacuum. And it only happens when I have the Aquapack connected. It has happened two times, same story each time. I'm calling up Hasbro today, but I don't expect them to know what's wrong. Any help would be appreciated.
