Weep holes....REALLY?!

Teeshot1939 wrote:
I intentionally waited for a

severe rain storm

to check out an Itasca Ellipse at my local RV dealership. The full wall slide was extended out. Water was pouring in from the middle of the full wall slide and on to the dining table.
After the rain subsided and the water was removed the salesman stated that the leak was due to "blocked weep holes". He pointed out two small holes located outside at the top of the slide out about 10 feet apart. The holes were about pencil sized diameter.
I was stunned by his answer. I assumed the weep holes were to allow any water that accumulated on top of the slide to slowly drain out before retracting the slide back in to limit any puddles on top of the slide that may end up on the floor inside. How can a blocked weep hole allow water inside the RV?
What am I missing here? thanks........

Yes blocked weep holes CAN and does let water to back up into the window tracks and then into the coach and run down the wall. Depending where you park these weep holes can get clogged up routinely. I check all the windows and clean the weep holes regularly.

AND

If the RV is

not perfectly level and tipped ever so little to one side

.....in a strong rain storm the water running off the roof will overflow the weep holes on that side and again the water comes inside. Making sure RV is level rectifies that situation.

Been there done that, watched it happen.