Originally Posted by eye95
Yeah. That tank is ballooned, top [i]and[\i] bottom. It was overfilled and probably pushed itself loose as the top pressed against the floor of the RV while holding far more weight than intended.
I don't think people realize the force that can be generated in cases like this.
Fully loaded Semi's are lifted back up on their wheels after overturning in accidents using air bags with internal pressure of less than 10 Psi. One mfr lists the max pressure at 8 psi and a bag about the size of a water tank like this will "straight lift" 1.5 tons. Now consider that incoming water pressure can average around 40-50 Psi----------minimum.
Even some of the reinforcements we've seen posted on this forum may not have survived the pressure this tank was most likely subjected to.