Visit the Team Iceshanty Proshop
buy Ht polar Tip ups. They dont freeze
i think the DEC will fine u a pretty penny for polluting the lake with antifreeze considering its TOXIC!!!How hazardous is ordinary antifreeze?Two ounces of ethylene glycol antifreeze can kill a dog, one teaspoon can be lethal to a cat, and two tablespoons can be hazardous to children.http://www.seco.noaa.gov/ENV/Factsheets/antifreeze.html
Then take a bunch of 5 gal buckets [empty] and put them over your tip-up. then listen for the flag when it smacks the side of the bucket!
I'd try spray cooking oil. Non-toxic, cheap & washable if it doesn't work.
what traps are you using, never seen a jack trap freeze, havent seen 40 ups freeze. have seen heritage freeze and it was mostly the spring coil that froze up, flag would still trip but the spring was frozen down. would assume the beaver dam would freeze the same as the heritage but being horizontal you would see it lift enough to know it was tripped. each trap has its quirks and thats a heritage quirk in heavey freezing rain