Tonight we are supposed to have our first freeze. Itís supposed to get down to 30 degrees with 20-25 mph winds. The next day and following week are supposed to be mild, so I really donít want to drain and blow out the plumbing on my SMB yet. The tank and plumbing are all inside the cabin except for the low point drain and fill port, so I believe the inside will be safe for one night. I was thinking about lining one of these with foil, mounting a pigtail socket for a low wattage 12v bulb, and placing it over the low point drain valve and pipe.
Has anyone on here done anything similar, and if so, did it do the job?