I found the feed ports very difficult to replace and they don't sit-in quite right. Of course, I waited until my feeder was empty and attempted many different ways to insert it, my husband even struggled with it. I believe the originals no doubt were inserted by a machine or a special tool, I don't know. Maybe provide a video on how to replace them. Despite the concept of the feeder which I like and the fact the feeder holds 80 pounds of feed at one time, my hens are still able to dump the feed on to the ground via the ports. If there was another product available from a different company, I would try it.