We were at Port St. Lucie 2 years ago - I hooked the hose up and pulled the black tank lever - hose was not tight!!!! WHAT A MESS ... It is amazing what can happen in less than 5 seconds.

Two hours later - after losing a pair of new shoes - things were back to normal. Thank goodness there was no one next to us. I was able to clean up un-observed.

Lesson learned - From that point I ALWAYS test the seal by dumping a little grey water first - then do the black water.

Jamie