I am trying to install a faucet on the outside of my parent's house. I have soldered most of the pipe into place and have located the water line I'd like to tap into. I've always used strictly rigid copper piping when doing any sort of plumbing (or compressed air) installations, but I feel like this may need to change. I need to navigate through a very tricky, awkwardly angled section that is, without serious work with a sawzall, impossible to do with rigid piping. Is it permissible to use a piece of garden hose to navigate through here? There will need to be about a 2' length of the hose, and half of it will be exposed to the sub freezing temperatures New Hampshire provides in the winter.