So don’t leave propane tanks full in the summer.
It doesn’t matter winter or summer if filled to 100 percent. Drivers are supposed to fill by the spit gauge instead of just watching the meter (and talking on their cell phone). I’ve had drivers over fill tanks and I made them pump them back down! Its a pain in the as_ to pump one back down and why should my service man have to cover for a driver not paying attention to his job?