My suggestion is to carry a spray bottle of Clorox / bleach and spray the hose bibb. Let it sit a few minutes before connecting your water hose. I was told this by a long time RVer and on my first trip saw a guy sticking his sewer hose over the faucet to rinse out the hose. Made an impression on me. I spray the water connection first thing before hooking up anything.
2013 Flagstaff 831FKBSS