Has anyone found a quick and easy way to clean very long pile rug?

[ScreamingBeans]

Even my faithful Henry doesn't get little bits out of the long pile rug and I wondered if anyone has found a way of cleaning it quickly?

I used to hang mine over the washing line and hit it with a tennis racquet. It was bloody hard work but I’ve never found another way to get all the bits out (and even after this there were always some bits left).