[AT] Heating livestock water in the frozen south with a M-67 immersion heater

[Cecil Bearden]

4 degrees this morning and -14 wind chill.   A week ago I ran 
electricity to the2  cattle water tanks and got everything installed for 
2ea 1500 watt heaters.   The "freezeproof" water faucet froze up 3 days 
ago and I spent the next day insulating and installing a heat tape on it.

Now the horses are the only stock I have that I have to worry about 
frozen water.  Their pond in the pasture is too low to even chop ice and 
get anything drinkable.    I ordered a M-67 military immersion heater a 
few minutes ago.  I have had them around before, but did not have a lot 
of luck with them.  I think the fuel tank valve would plug.   Probably 
needed to clean the tank out since they were 40 years old.    Have any 
of you guys used these and have any tips for getting them to work 
reliably.    I would set it to run in the evening through the night and 
in a 4ft diameter x 2 ft tall tank, it shouldn't get too hot if I can 
throttle it down.

Any help would be appreciated

Cecil in OKla