I have the following drained pvc tube pipe. As you can see from the picture below, I want to detach the part that I've circled in green (the upper part).
The pvc part has been glued.
After many readings on the internet, one of the easiest solution would be to use a heat gun/thermal cleaner to unstuck it (like in this video).
Is there a simpler way to unglued the pvc tube without using a heat gun?