winterizing bags

There were some guys on here looking for help winterizing their bagged dailys,so this is for you.I haven't had any trouble with my valves or anything because I use air brake anti-freeze in my tank,but my checkvalves on my compressor leaderhoses were freezing up. I took some water pipe insulation from home depot(it's the round foam that is split down the middle)and put it around my checkvalves,and about 6" of my leader hose.Then took electrical tape and wrapped it tight around it,haven't had any trouble since,and it has gotten down to about 6 degrees.Hope this helps anybody having trouble.