For dayhikes I have a regular North Face backpack with two side mesh pockets, one large rear pocket made of a web of elastic cords, but NO internal bladder pocket.

Can I use a 2L hydration bladder and hose setup with a regular backpack?
If it is upside-down in my pack, won't the cap and hose get squished?
How do you clip the tube to your straps-- does a clip come with the unit?

Thanks!!!