Originally Posted by SPGreene
Thank you for ALL your posts; you are a saint for your kindnesses. So where is this "blue-and-white hose?" It's not the discharge hose. I'm 2014 silver extend. Steve Greene Kent CY
It's a separate fresh water hose that you attach between the service pedestal and your municipal water intake. Being outside your Airstream, and above-ground, naturally it's more susceptible to freezing when you're camping in winter. When your Airstream is in storage, it's a moot point, because naturally you'll have drained the hose and stored it inside rather than leaving it hooked up.
Side note, fresh water hoses are blue-and-white for a reason. They are made of a lead-free plastic material that will not leach harmful chemicals into your drinking water. That color code is used in both the RV and maritime industries to mark hoses that are safe to carry drinking water.
Green or black garden hoses contain lead and phthalates that can leach into the water, especially if the hose lays in the sun and gets hot. Don't use them for drinking water.