I have a clark auto scrubber with over a hundred pounds of down preasure and i have a aztec 21 inch propane buffer. My question is can i strip a floor with a black pad on the propane buffer and if i can will it hurt the machine. I had someone tell me that if i stripped the floor with my auto scrubber with a black pad it is not reccomended but i tried it and it done a good job and didnt seem to hurt it. I cant afford a propne stripping machine at this time so should i by a 20 inch burnisher and use a black pad or keep useing the auto scrbber. I clean places like walgreen,grocery stores,offices ,filling stations and stuff like this.