Anybody using farm innovators brand heaters ? I bought one stuck it in the freezer to check the thermostat like the book says pulled it out nope didn't work took it back got another one how could 2 of them be bad figured no way just stuck it in the tank yip that one was junk to . The old heater in the tank was working fine it quit because the element finally rotted away and finally quit . Found and old floating style heater farm innovators brand stuck it in the tank and it's working fine ten below here right now and water doesn't have a lick of ice . How many am I going to have to keep trading in to find a good one ?