[throaway5454]

Door and pool are pronounced the same where I am, with a drawn out double o sound. When spoken rapidly, the vowel contracts, especially in door.

[jameshart]

The door vowel placed between P and L would make the word 'Paul' or 'pall' in most English accents. If I imagine 'door' with the pool vowel, I get something like a Scottish pronunciation of 'dour'.

[throaway955]

dew-r pew-l