Originally Posted by the raven
I have seen people use pool noodles, just split them and put on the hose.
"Pool Noodles" alone will not prevent freezing. They merely slow the loss if heat from the hose. Since the hose is small the amount of water it contains doesn't have much heat to begin with so it may make a difference for an hour or two.
Best approach for freezing nights with warm days is to just fill the tank and store the hose.
Only reason I'd bother with a heated hose (I made my own when I wintered in my trailer at sub zero temps) is if I had a habit of showering in the middle of the night.
BTW, why bother with Pool Noodles when pipe insulation is cheap and sold at Home Depot. Already split and has adhesive to join the split edges after placed around pipe/hose.
I will admit that pool noodles do come in fancy colors and pipe insulation is only in boring "black". If you want you could just think of the black insulation as "Tactical Pool Noodles"