Sharing the vinator luv! Best invention ever!Rinsing with water is not sufficient for sanitation. What you're doing will work, but I can suggest a few tips to help steamline that, and reduce your Star San use.
1) Get a spray bottle and some distilled water. Using distilled water with Star San will make your solution stay useable for weeks or even months. I use my spray bottle to spray out my bottling bucket, then flip it upside down over some paper towels to let it dry out. Compared to filling the bucket with water and sanitizer, this is a huge money saver.
2) Drop the 10-15 bucks on a vinator. It'll let you spray sanitizer inside your bottles, coating the inside. Again, this is much more efficient than filling a bucket with water and sanitizer and dunking the bottles.
Hope that helped.