My double wide was plumb with the PBU ( Polubutial) or something like that back in the 80's. Kept breaking ,mostly at the clamps. I would get copper pipe the outside diameter the same as the inside diameter as the PBU. Little Vaseline on the copper pipe then shove it hard and fast as far in the PBU as you can. At first I was using automotive clamps to hold it together but found out the clamps were not really doing anything. The copper pipe would not come out. Latter when it was found PBU to be defected inspectors came out to my house to check it out. They said they never saw this repair on any of the hundreds of houses they checked. They even tried to pull apart a sample I made. They were surprised.
Yes it did reduce the inside diameter of the pipe,but it worked for 10 or 15 years. I kept a piece of pipe on hand for emergency's.
Since then I have repaired a lot of hoses and things with this repair. On hoses I do use clamps.
I hope people don't get the wrong idea of my first paragraph. It was not meant to sound like a sex novel.
Enjoying my 70 degree day before the cold front hits latter to day.
TJ