forthefunofit94 wrote:
Thanks, that's what I thought, but I tend to err on the cautious side.
Yup, that's cautious alright. Not there's anything wrong with that.
Water doesn't START to freeze until IT reaches 32 deg. not the air temperature does. Also, in the fall when the earth is still warm, a hose full of water laying on the ground will not start to even slush up let alone freeze till the temps are quite way below 32 degrees.
It would take far more than the few hours it's below freezing by 2 or 4 degrees for the water to be affected.
I've had no issues with water lines (in the fall) down to 25 deg. and tanks even colder. More liquid means more mass, more mass means longer till it cools to the freezing point.