As some of you may have seen, I got an echo pas 260 with prosweep for christmas. I was using it the other day to sweep some sand off of a driveway. When I was finished, I noticed quite a bit of sand build up in the middle of the broom housing as well as it was quite hot. My manual does not say anything specifically about the pro-sweep; just the pas itself. any that have these, is what cleaning actions do you take-or am in doing somthing wrong. Thanks-I could really use the help.