You only need to chill them 10 minutes in the freezer.
Type: Posts; User: Wise Old Owl
You only need to chill them 10 minutes in the freezer.
http://www.cabelas.com/product/Mr-Heater-Brass-Propane-Tank-Caps/1151607.uts
The smaller tanks leak once refilled.
Well there is more to the trick - one has to seal the top with a pressure brass cap. Once offered at Cabellas.