I did this today.
Electric Task Force from Lowes.
Not sure if blow or suck is better.
I mounted the camera outside - pressed record - then went inside and put the blower into the pipe - and wrapped a used pellet bag around it.
I had absolutely nothing shoot back out at me - it was quite easy - and the pellet bag wrapped around pipe and blower worked fine.
Video -->
Note all the action is @1:30
That was after about 1.5 tons of pellets.
I used to use gas blowers for yard work. Never again. Electric is just fine and oddly I never have to worry about bad fuel or cleaning the carb.