Deb,
Looking great! Are you going to us the lid on the bucket? If so, try to position the fill tube as close, and as vertical to the side wall as you can get it.
Stand it up and mark where it hits the colander. Then drill straight down to cut the hole. You want the tube out of the way of your plant. Also, you might need to drill the fill tube hole at an angle through the lid the way it's positioned now.
