Does your mother have a J/G tube? Does the top have 3 ports? One for the stomach, one teeny tiny one that would only fit a needle to go in and the 3rd one the biggest part going into her intestine? If this is what she has, I have the same kind. DO NOT PULL THIS OUT!!!!! There are stitches inside holding this in place. Another huge item is NEVER EVER pull back to get a residual on this kind of feeding tube. It could dislodge it. I did give you other into of your other post.

Keep working on it. Yes, its ok to use the skinny side for the feeding. I would suggest watering down the formula as this part is very small and would clog even easier. You can try to push just air thru too. If you cant get it call for help wither a visiting nurse or gastro doc. Someone should be on call. this would be considered an emergency so if you cant get help then go to the ER. This type of tube needs to be replaced every few months. I usually go about every 2-3 months.