I looked for the straw like tube you refered to. I found one in the compressor area. When I touched the straw like tube it was very, very brittle and started to crumble in my fingers. I can not figure out where it was connected or how to fix it. Any ideas. Can you do this repair with the hood open or do it need to access through the inside? Do I need to purchase a new tube? If so do you know where I can get one?