Thanks for replying, Alaskan. I agree about winter nights. Temperatures vary wildly in Virginia, but winter nights don't get into single digits. The tank (and run) gets several hours of sun in summer; a little less in winter.
The run is about two acres away from my house, so I won't be able to...
Mind if I add a related question to this conversation? I use a 55-gallon drum connected by PVC pipe to a Little Giant bowl (like above) and am researching if i can dress it for winter. The catch? It has no access to electricity. I'd like to put an insulation wrap on the drum (just to discourage...