If I am wrong please someone let me know. I bought a 55 gallon drum of 1000. I was under the impression that it can be used in place of salt. I was also under the impression that it melts ice. I was also under the impresson that it melts up to 2"-3" of snow. I also thought that 1 gallon will treat 1500 square ft. I did not pre treat with it. I sprayed it on after we cleared the walks. Snow still covered the walks. Sprayed it on a patch of ice. It crackeled like salt for about 10 sec. and then nothing. Didn't even melt the ice or go through to the pavement like salt does. The only thing that it did do was cost me time and materials, ( had to buy sidewalk salt , cause it wasn't melting). But it did however keep the snow or ice from sticking(not forming on) the pavement. I used what I thought was over application ( about 2 gallons in a 100 square ft area) and the 1000 did nothing to melt the ice. I was having better luck with the radiation of the sun melting the ice. Unless I was miss informed or mislead, I think the stuff sucks. If someone can tell me what I'm doing wrong or what ever that would be great. I've go 3/4 of a barrel on my truck, and its doing nothing but adding ballast for plowing as far as I'm concerned. By the way we were applying the product to sidewalks with a back pack sprayer.