*Updated* Fresh Water tank fell off while driving

We had our black tank fall out while camping. We had to jack it back up, and secure with ratcheting straps for the 4 hour ride home. BTW, it was a Coachmen trailer. During the build process, the workmen installing the tank bent the retaining rails in order to more easily insert the tank. Well, easy in and easy out. Because of the enclosed underbelly, we couldn't see the tanks during PDI. Because of this, and other shoddy details, we will never own another Forest River (Coachmen) product.