just had to replace the brushes in mine again today,i know last time i done this the replacement brushes i used ended up being rubbed down just a tad too much,but the amount of crud that came out of the unit once i reopened it was surprising.mined you i did borrow them from a very cheap multi tool i had laying around. this time i got hold of some decent ones and took my time doing the reapir,so once again many thanx to john for the detailed instructions :ph34r: still managed to loose my skin,so bloody tight to get the pipes off.still all repaired now.