Our Colorado Carefree Electric Awning would auto dump water. It could also be adjusted. On the arm, there were 6 holes to move the awning to different pitches. It didn't pitch as much as a manual awning, but it pitched more than enough to drain water.
Since our seasonal site is across from a farm, it is always windy at our site and awning tie downs are a must or we couldn't really use the awning. So the auto dump feature couldn't work with the awning tied down. Set on the 6th position pitched the awning enough to drain water, even in very heavy rains.
-Michael