Just as I'd stop complaining about the DC39 after discovering I could empty it with my emptying tool, I discovered that have great suction and tight corners in pipes doesn't quite work.
For weeks I've been getting less and less suction for no obvious reason, and then it started a hi pitched whine or whistle like it was a heavy chain smoker on a cold damp morning.
Then I found the solution and now it works like new.
#fixed1ttip
