Bruce Jones  in  Digest: 96.07.26 asked:

> Can I gently use a vacuum cleaner to clean the tracker bar, rather than using
> a tracker bar pump?

I've tried it both ways, with the vacume first then the pump.  I pulled
out the filter screen and low & behold, More crud the vac failed to
pull up.  While the vacume cleaner can move a large volume of air, it
cannot provide the short concentrated burst of air needed to really
knock stuff loose.  Hope this answers your question.

Brian (Goatboy) Thornton
Short Mtn. Music Works
109 North Cannon St.
Woodbury, TN 37190
615-563-5814