Low 20ª's would likely freeze any moisture in a thin air line.
At 25ªf a bucket of water will freeze through overnight if cold air can get round it
I'd be inclined to switch the pump off on nights that cold to avoid ice blocking the line with ice causing the motor a problem
Regards, andy
http://www.pinterest.com/adavisus/pondering/
http://swglist.wordpress.com/
At 25ªf a bucket of water will freeze through overnight if cold air can get round it
I'd be inclined to switch the pump off on nights that cold to avoid ice blocking the line with ice causing the motor a problem
Regards, andy
http://www.pinterest.com/adavisus/pondering/
http://swglist.wordpress.com/