Question on Tank Hoses

[MBalbale]

I took of my tank yesterday and was confused on some of the hosing. There are two that clearly connect to the petcock, one l shaped drain hose. But then there is another with red stripes that I can't find any description for in my Clymers. Does anyone know what this hose is for?

Thanks,
Musab

[EvilScooby]

Try this diagrahm from Kerry's archives

http://www.bbburma.net/Scans/www_gs500_de_HoseRouting.jpg

[MBalbale]

The pic was helpful. Thanks.
Musab