I set up a new tank recently, custom tank, and custom pvc job. The problem I am having is with my pvc to bulk head connection. I glued the pipe on but there was still a big leak. Then I cut the flow and dried it up, I applied silicone to the joint and left it to dry for 3 hours. Even after this it leaked. If anyone knows any sealant or tool useful for a problem like this please comment, thank you for your support