I had a frost free hose bib in the garage fail and I need to replace it. I noticed the hose bib in the back yard isn't frost free and this got me thinking. Do I need to use a frost-free bib? I understand a non frost free bib requires a shutoff with a waste and that is what's on the back yard bib. If I repeat for the garage bib is that okay? PS: located in Ontario, Canada.