No, I meant to say that you should not use the fresh water hose at the site, especially a non-partial site. These hoses are not there for drinking water, they are there for site clean-up and emergency use. I have seen them used for very non-sanitary purposes, and I would not want to consume the water that comes out of it. I highly recommend buying a sanitary drinking hose (usually white in the camping supplies department).
Be safe