Let me first start off by saying I know I should just replace the piping. However this is the piece attached to my hayward multiport valve and to replace it I would have to replace the whole valve along with several pipes that were glued into it. I tried the method of adding extra pvc cement to the joint. That worked for about a year. I tried it again this year and it's just not going to cut it. I was going to remove the glue around the joint and start fresh but looking for the best method. Thanks in advance.