I just moved into a townhouse with the washer/dryer on the second floor. When I connected the washer, I must not have tightened the connection well enough, because water was spraying out at the connection point. I turned the washer off, but by this point the first floor ceiling had already begun gushing water through an air vent. Within a few hours, the drywall on the ceiling was mushy.
I'm wondering if it is possible that the drywall went soft that quickly and did that much damage from a washing machine connection not being tight enough. Any advice is greatly appreciated.