my wife insisted on the purchase of the 47b2 powerbrush. when it arrived, I thought it was almost a toy. I tried it out on some old through rugs and was amazed at the results. It did take a while to realize that only a small amount of cleaning solution was necessary. The secret was pulling the water out of the carpet. The rugs dried overnight. I will be ordering some parts which I want to have in hand for the future. I will recommend this beauty!!