I installed 4 rain barrels earlier this year and with the recent temperatures one of the barrels split open. The other 3 are fine but they are filled with ice obviously. For those with rain barrels, what do you do during the winter? Do you empty them or put heaters in (like I do with the water buckets for the animals) or do you store them? I found a little conflicting advice online and curious what people in our area with experience recommend. Thanks in advance.