You have to use a level because the water port is at nearly the same height as the rim and any slight lean and all the water will leak out.
The tabs holding the two pieces together are so short and narrow and the reservoir so thin and flimsy that it frequently comes apart when you turn it over after filling. It isn't fun filling your boots with water when it is 0F outside.
I bought 2 of these and because they're such a pain to use, I avoid using them unless absolutely necessary. I keep them in the basement so not exposed to UV radiation. In spite of this, the one I've only used twice sprung a leak on the top so it won't hold water no matter what I do.
It will keep water thaw in mildly freezing temperatures but not worth a fraction of the cost.
The tabs holding the two pieces together are so short and narrow and the reservoir so thin and flimsy that it frequently comes apart when you turn it over after filling. It isn't fun filling your boots with water when it is 0F outside.
I bought 2 of these and because they're such a pain to use, I avoid using them unless absolutely necessary. I keep them in the basement so not exposed to UV radiation. In spite of this, the one I've only used twice sprung a leak on the top so it won't hold water no matter what I do.
It will keep water thaw in mildly freezing temperatures but not worth a fraction of the cost.
