Super glue will not hold forever and you have a part missing.
There should be a small brass tube 1/8" in OD and about 3/8" to 1/2" long (for a 1/8" ID plastic tube) with a lip formed on one end. This brass tube is inserted INSIDE the plastic tube to support it so that it will not collapse when the ferrule (the tapered brass part that slips over the OUTSIDE of the tube) is crimped by the nut that goes over the entire assembly, that is there are two brass pieces inside the nut besides the fitting it screws over. You really need to fix this thing right because if it fails and you don't notice it you very well could burn out the motor if it stalls while trying to start the pump with pressure on it. Besides the fitting that this is all attached to you should have,
1- A brass nut slipped over the line first.
2- A brass ferrule that slips OVER the line about 1/8" past the end of the tube.
3- A brass tube that slips INSIDE the plastic tube to support it.
If the ferrule will not slip past the end of the tube it is because it is already crimped and it is not going onto the tube far enough, these things are NOT REUSABLE! Once the nut has been tightened onto this part it must be discarded and replaced with a new one but even if you can get it farther onto the tube it still probably will not hold. This is because no matter how much it crimps the plastic tube will simply collapse and slip out unless the brass insert that you are missing is in place to support it. These are VERY common and inexpensive items that you can easily find at any hardware store or plumbing supply.
Last edited by oldred; 12-03-2007 at 11:21 AM.