[RMcNeal]

We had that problem when the rig was new. Noticed on our initial walk through that water was on the counter and stove after CW "washed" it with a pressure washer and forced water up through the vent. It has only happened once in a rain storm when I didn't lock down the flap and the wind and rain was blowing in just the right direction to force water into the vent. I keep it closed now unless we need to run the vent fan when cooking, which is very rare.