We've spent the last decade exclusively renting drum sanders. We do this because we know drum sanders are really efficient, but more importantly, because we have the luxury of being able to train our customers on those drum sanders.
We can't tell how many people just tell us they are going to hand-scrape the finish from under their radiators. Keep in mind that here in the Twin Cities, we see 1920s era radiators that can be eight feet long!
Drum sanders are literally that: an abrasive-covered drum spinning at high speed that is lowered onto your floor. Oh, and we press the weight of about seventy pounds of steel on top of that spinning drum.