I recently ran over a friggin' shed antler and had to take a tractor tire in for a patch. I thought that tractor tires were typically filled with water for ballast but after reading up on it, some sites recommend against water since it can corrode the rims and there is a risk of the tires freezing in cold weather. Some recommend a beet byproduct that is heavier than water, freeze resistant to very low temperatures, non-corrosive and non-toxic. One brand goes by the name Rim Guard. I think it sells for around $3/gallon.

How about the corrosion risk? Most tires have high moisture in them anyway so I don't really buy the corrosion hype.

Is freezing really a concern down here in the Lowcountry? We rarely get several days in a row of hard freeze. Should antifreeze be added to the water?